8677 + Interview Questions in Maths in Class 14 Page 139 InterviewSolution

6901.	The salary of A is 20% lower than B' s salary and the salary of C 56.25% greater than A's salary. By how much percent the salary of B is less than the salary of C.
Answer» `15%` `20%` `25%` `33.33%` ANSWER :B

Discussion

6902.	If first and (2n−1)^(th)terms of an A.P., G.P. and H.P. are equal and their n^(th)terms are a, b, c respectively, then
Answer» a. a+c=2b B. a+c=b c. b^2 =ac d. NONE of these Answer :B

Discussion

6903.	The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ?
Answer» A) 2 : 5 B) 8 : 15 C) 9 : 10 D) 3 : 5 Answer :`15%, 12%`

Discussion

6904.	In the following algorithm x, y and z are variables which change their values in each step such that the value of the expression on the right hand side is assigned to the variable on the left hand side of the equation. Each cycle consists of 5 steps, S_(1), S_(2), S_(3).... are the sum of each corresponding cycle 1, 2, 3....... START Step 0. x=1, y=-2, z=3 Step 1. x=y-z Step 2. y=z-x Step 3. z=x-y Step 4. S=x+y+z Step 5. Go to step 1. What is the value of S_(4)?
Answer» 987 754 `-178` NONE of these Answer :B

Discussion

6905.	Two stations P and Q are at a distance of 160 km. Two trains start moving from P and Q to Q and P respectively and meet each other after 4 h. If speed of the train strating from P is more than that of other train by 6 km/h, then find the speeds of both the trains, respectively.
Answer» 19 km/h, 13 km/h 13 km/h, 9 km/h 17 km/h, 23 km/h 16 km/h, 10 km/h Answer :C

Discussion

6906.	In the following algorithm x, y and z are variables which change their values in each step such that the value of the expression on the right hand side is assigned to the variable on the left hand side of the equation. Each cycle consists of 5 steps, S_(1), S_(2), S_(3).... are the sum of each corresponding cycle 1, 2, 3....... START Step 0. x=1, y=-2, z=3 Step 1. x=y-z Step 2. y=z-x Step 3. z=x-y Step 4. S=x+y+z Step 5. Go to step 1. Which one of the following is correct for each cycle?
Answer» `S=2x` `S=3x` S is an ODD number none of these Answer :A

Discussion

6907.	If the difference between the compound interest and the simple interest on a certain sum for 2 yr at 8% per annum is ? 32, then the sum is
Answer» ANSWER :RS. 5000

Discussion

6908.	If a+b+c=6, a^(2) +b^(2)+ c^(2)=16, find ab+bc +ca= ?
Answer» ANSWER :10

Discussion

6909.	What will be the difference between simple interest and compound interest at 4% per annum on a sum of 5000 after 3 yr ?
Answer» 24.32 28.56 32.48 36.18 Answer :B

Discussion

6910.	From the top of a cliff 90 metre high, the angles of depression of the top and bottom of a tower are observed to be 30^(@) and 60^(@) respectively. The height of the tower is:
Answer» 45 m 60 m 75 m 30 m Answer :B

Discussion

6911.	B takes two times time as long as (A + C) together take to complete a work C takes three times time as much as (A + B) together take to complete a work. If all three working together can complete the work in 25 days. Then find the number of days in which A, B and C can complete the work individually.
Answer» Answer :`A to 60` DAYS,`B to 75` days, `C to 100` days

Discussion

6912.	King Dashratha of Ayodhya on his birthday decided to offer 100 coins of gold among his 4 sons and 3 wives. The denomination of each coin is ₹1. He put all the 100 coins in 7 bags in such a way that by taking a proper combination of various bags any integral sum (i.e. ₹ 1, 2, 3, 4, ... .100) can be obtained and it is known that the only whole sum of any bag can be taken. If the two least amounts are combined with highest one then minimum how many persons combined their coins to get the same amount:
Answer» 2 3 4 5 Answer :A

Discussion

6913.	Find the value of ^10C_2 + ^10C_3 + ... + ^10C_10
Answer» 100 `10^2 - 10` `2^10 - 11` `2^10 - 2` Answer :C

Discussion

6914.	The two pie charts show the market share of different companies which produces TV and Refrigerator (noth) in the first quarter of 2005-06. The difference is not shown to scale.
Answer» `7.2^(@)` `14.4^(@)` `21.6^(@)` NONE of these Answer :B

Discussion

6915.	If tan((pi)/(2)-(theta)/(2))=sqrt(3), then the value of costheta is.
Answer» 0 `(1)/(sqrt(2))` `(1)/(2)` 1 Answer :C

Discussion

6916.	King Dashratha of Ayodhya on his birthday decided to offer 100 coins of gold among his 4 sons and 3 wives. The denomination of each coin is ₹1. He put all the 100 coins in 7 bags in such a way that by taking a proper combination of various bags any integral sum (i.e. ₹ 1, 2, 3, 4, ... .100) can be obtained and it is known that the only whole sum of any bag can be taken. If all coins, of these who have odd number of coins, are combined then minimum how many people are required to combine their coins to make the same amount having even number of coins:
Answer» 10 13 11 9 Answer :C

Discussion

6917.	Find the total number of quadratic polynomial ax^2+bx+c, if a,b,c are some three positive distinct integers less than 2000, such that (x+1) is the factor of the quadratic polynomial ax^2+bx+c.
Answer» 19996002 1860004 19876004 none of these Answer :D

Discussion

6918.	Shaan got a total of Rs. 912 in the denomination of equal numbers of Rs. 1, Rs. 5 and Rs. 10 coins. How many coins do Shaan posses?
Answer» 6 3 4 none Answer :C

Discussion

6919.	The number of ways in which 13 gold coins can be distributed among three persons such that each one gets at least two gold coins is
Answer» 128 73 37 64 Answer :B

Discussion

6920.	Ashmitcan solve80 %of theproblemgivenin a bookandamishacan solve70%. What is the probabilitythatatleastoneof themwillsolvea problem , selectedatrandomfromthe book ?
Answer» `0.60` `0.06` `0.94` `0.56` ANSWER :C

Discussion

6921.	ABCD is a rectangle. Let E be a point on AB andF a point on CD such that DE is parallel to BF.If AE=3 cm and if the area of triangle BFC = 6 square cm. Consider the following statements : 1. Area of rectangle ABCD can be of the formpq^(2) square cm where p,q are distinct primes. 2. Area of the figure EBFD is of the form r^(2) square cm where r is rational but not an integer. Which of the above statements"is/are"correct ?
Answer» Only I Only II Both I andII Neither I nor II Answer :A

Discussion

6922.	The tens digit of the 2^(248) is :
Answer» 1 7 5 none of these ANSWER :C

Discussion

6923.	If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days?
Answer» A) 710 acres B) 760 acres C) 810 acres D) 860 acres Answer :A

Discussion

6924.	The area of the floor of a rectangle hall of length 40m is 960m^2. Carpets of size 6m*4m are available, then, how many carpets are required to cover the hall?
Answer» a. 20 B. 30 c. 40 d. 45 Answer :B

Discussion

6925.	A lawn is in the shape of rectanglle of length 60m and width 40m. Inside the lawn there is a footpath of uniform width 1m bordering the lawn. The area of the path is :-
Answer» a. 194m^2 b. 196m^2 C. 198m^2 d. 200m^2 Answer :C

Discussion

6926.	The reading style of Sunny is quite unusual. He reads one page on the first day, 2 pages on the second day, 3 pages on the thrid day etc. How many pages Sunny can read in 24 days?
Answer» 242 300 276 none of these Answer :B

Discussion

6927.	By an engine the consumption of coal is directly pro portional to the square of its velocity. When velocity is 50 mile/hour then consumption is 100 kg. If cost of coal is 25paise /kg, and expenditure is 9 Rs./hour in second case. Then find the consumption in travelling 250 mile.
Answer» 325 KG. 300 kg. 225 kg. 270 kg. ANSWER :B

Discussion

6928.	A car mechanic purchased four old cars for ₹ 1 lakh. He spent total 2. lakh in the maintenance and repairing of these four cars. What is the average sale price of the rest three cars to get 50% total profit if he has already sold one of the four cars at ₹ 1.2 lakh?
Answer» 1.5 lakh 1.1 lakh 1.2 lakh 1.65 lakh Answer :B

Discussion

6929.	In the given figure O is the centre of the circle and angleCD = 26^(@), find angleAOD :
Answer» `52^(@)` `154^(@)` `128^(@)` DATA insufficient Answer :A

Discussion

6930.	Whatis the ratio whose terms differ by 40 and the measure of which is 2/7?6: 56b. 14 : 556c. 16 : 56d. 16 : 72
Answer» 0.70555555555556 0.61736111111111 0.65 0.71666666666667 Answer :C

Discussion

6931.	Multiply 83 by 87.
Answer» Solution :STEP 1: `3 xx 7 = 21` Step 2: `8 xx (8 + 1) = 72.` `83 xx 87 = 7221`

Discussion

6932.	There are three persons L. M and N who each invested in two different scheme S_(1) and S_(2). L invested Rs. 1,60,000 for 2 yr in scheme S_(1) and 60,000 for 4 years in scheme S_(2). M invested Rs. 60,000 for 3 years in S_(1) and he did not invest in scheme S_(2). M also obtained a profit of 20,000 by selling his car. N invested Rs. 100000 for 5 years in scheme S_(1) and 20,000 for 3 years in scheme S_(2) . total profit obtained from scheme S_(1) is 4 lakh and scheme S_(@) is 1,80,000. If L had invested his sum at Simple Interest for 3 yr at the rate of R%. p.a instead in scheme S_(1) and M has invested his sum at compound Interest at (R+5%) p.a. for 1 year and difference in interestobtained is 60,000 then find value of R%.
Answer» 0.1 0.09 0.15 0.18 Solution :Ratio of profit share of L , M and N in scheme `S_(1)` `160000xx2:60000xx3:10000xx5` `16:9:25` Profit share of L from Schem `S_(1)=(16)/(50)xx400000=128000` Profit share of M from scheme `S_(1)=(9)/(50)xx400000=72000` Profit share of N from scheme `S_(1)=(25)/(50)xx400000=200000` Ratio of profit share of L and N in scheme `S_(2)` `60,000xx4:20,000xx3` `12:3` Profit share of L in scheme `S_(2)=(12)/(15)xx180000=144000` ltbgt Profit share of N in scheme `S_(2)=(3)/(15)xx18,0000=36000` `(160000xxRxx3)/(100)-6000xx((R+5)/(100))=60,000` `2400R-300R-1500=30000` `8R-5=1500=30000` `7R=105` `R=15%`

Discussion

6933.	P and Q start running on the circular track in opposite directions they starts from a point A and meet for the first second and third time at B,C and A respectively. what is the ratio of speeds of P and Q?
Answer» `2:1` `3:1` `4:1` NONE of these Answer :A

Discussion

6934.	A company produces three products. The products are processed on 3 different machines. The time required to manufacture one unit of each the three products and the daily capacity of three machines are given in the table below : Read the following additional data for question number 9, 10 and 11. The profit per unit for product 1, 2 and 3 is Rs. 3, Rs. 4 and Rs 5. What combination of P_(1), P_(2) and P_(3) will yield maximum profit under the manufacturing constraints? 1. P_(1) - 25, P_(2) - 50, P_(3) - 100 2. P_(1) - 20, P_(2) - 60, P_(3) - 80 3. P_(1) - 100, P_(2) - 0, P_(3) -50 4. P_(1) - 0, P_(2) - 80, P_(3)- 100
Answer» A. 4 B. 2 C. 3 D. 1 Answer :B

Discussion

6935.	The S={(1,3,5,7,9,…,99)(102,104,106,…200)} i.e., in the first part there are odd integers less than 100 and in the second part there are even integers greater than 100, but upto 200. The highest power of 5 that can exactly divide the product is
Answer» 52 51 97 can't be determined Answer :A

Discussion

6936.	The product of two numbers is 216. If the HCF is 6, then their LCM is:
Answer» 72 60 48 36 Answer :D

Discussion

6937.	Out of the four arbitrary non - collinear points three points are taken at a time, then the number of planes that can drawn through the three points is :
Answer» 3 4 6 12 Answer :B

Discussion

6938.	In a square ABCD, an equilateral triangle ABE is drawn inside the square on side AB. Diagonal DB cuts the triangle at point O find the value of angle AOB?
Answer» a. 45degree B. 60degree c. 63degree d. 75degree Answer :B

Discussion

6939.	There is a three digits number abc and a two digit number xy such that the product of abc with xy is same as the product of cba with yx, if x and y can be similar digits, then the number of such pairs of P and Q is :
Answer» 99 900 810 can't be determined Answer :C

Discussion

6940.	There are three persons L. M and N who each invested in two different scheme S_(1) and S_(2). L invested Rs. 16,0000 for 2 yr in scheme S_(1) and 60,000 for 4 years in scheme S_(2). M invested Rs. 60,000 for 3 years in S_(1) and he did not invest in scheme S_(2). M also obtained a profit of 20,000 by selling his car.invested Rs. 100000 for 5 years in scheme S_(1) and 20000 for 3 years in scheme S_(2) . total profit obtained from scheme S_(1) is 4 lakh and scheme S_(@) is 18,0000. What is the ratio of total profit obtanined by N from scheme S_(1)
Answer» `23:47` `54:47` `36:43` `23:50` Solution :Ratio of PROFIT share of L , M and N in scheme `S_(1)` `160000xx2:60000xx3:10000xx5` `16:9:25` Profit share of L from Schem `S_(1)=(16)/(50)xx400000=128000` Profit share of M from scheme `S_(1)=(9)/(50)xx400000=72000` Profit share of N from scheme `S_(1)=(25)/(50)xx400000=200000` Ratio of profit share of L and N in scheme `S_(2)` `60,000xx4:20,000xx3` `12:3` Profit share of L in scheme `S_(2)=(12)/(15)xx180000=144000` ltbgt Profit share of N in scheme `S_(2)=(3)/(15)xx18,0000=36000` Required ratio `=(72000+20000):200000` `46:100` `=23:50`

Discussion

6941.	A cuboid of dimensions 51, 85 and 102 cm is first painted by red colour then it is cut into minimum possible identical cubes. Now the total surface area of all those faces of cubes which are not red is :
Answer» `119646 cm^2` `52020 cm^2` `18514 cm^2` `36414 cm^2` ANSWER :A

Discussion

6942.	If x, y, z are real numbers such that x+y+z=4 and x^(2)+y^(2)+z^(2)=6, then x,y,z lie in :
Answer» `[(3)/(2),2]` `[(2)/(3),2]` `[0, (2)/(3)]` none of these Answer :B

Discussion

6943.	If (sec theta + tan theta)/(sec theta - tan theta) = 5/3, then sin theta is equal to
Answer» `2//3` `3//4` `1//4` `1//3` ANSWER :C

Discussion

6944.	Find the slope and the intercept on the y-axis of the line sqrt3x+3y=6:
Answer»

Discussion

6945.	What is the area of triangle whose sides are 9cm, 12cm and 15cm?
Answer» a. 45cm^2 b. 54cm^2 c. 56cm^2 d. 64cm^2 Answer :D

Discussion

6946.	Two candidates fought an election. One of them got 64% of the total votes and won with 992 votes. What was the total number of votes polled ?
Answer» 1500 1580 1550 none of these Answer :D

Discussion

6947.	ABCD is a parallelogram of base 3cm and height 4cm. Find the area of the parallelogram.
Answer» a. 12cm^2 B. 14cm^2 c. 15cm^2 d. 60cm^2 Answer :B

Discussion

6948.	If the cost price of 12 articles be equal to the selling price of 20 articles, then find the loss percent in the transaction.
Answer» 16 20 25 26 Answer :A

Discussion

6949.	The circumference of the circle whose area is 24.64 m^2 is:-
Answer» a. 17.2cm b. 17.4cm C. 17.6cm d. 18.0cm Answer :C

Discussion

6950.	A man bought an article and sold it at a gain of 5%. If he had bought it at 5% less and sold it for Rs. 1 less, he would have made a profit of 10%. The Cost Price(C.P.) of an article was
Answer» RS. 150 Rs. 200 Rs. 250 Rs. 350 Answer :B

Discussion

Explore topic-wise InterviewSolutions in .

The salary of A is 20% lower than B' s salary and the salary of C 56.25% greater than A's salary. By how much percent the salary of B is less than the salary of C.

If first and (2n−1)^(th)terms of an A.P., G.P. and H.P. are equal and their n^(th)terms are a, b, c respectively, then

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If a+b+c=6, a^(2) +b^(2)+ c^(2)=16, find ab+bc +ca= ?

What will be the difference between simple interest and compound interest at 4% per annum on a sum of 5000 after 3 yr ?

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Find the value of ^10C_2 + ^10C_3 + ... + ^10C_10

The two pie charts show the market share of different companies which produces TV and Refrigerator (noth) in the first quarter of 2005-06. The difference is not shown to scale.

If tan((pi)/(2)-(theta)/(2))=sqrt(3), then the value of costheta is.

Find the total number of quadratic polynomial ax^2+bx+c, if a,b,c are some three positive distinct integers less than 2000, such that (x+1) is the factor of the quadratic polynomial ax^2+bx+c.

Shaan got a total of Rs. 912 in the denomination of equal numbers of Rs. 1, Rs. 5 and Rs. 10 coins. How many coins do Shaan posses?

The number of ways in which 13 gold coins can be distributed among three persons such that each one gets at least two gold coins is

Ashmitcan solve80 %of theproblemgivenin a bookandamishacan solve70%. What is the probabilitythatatleastoneof themwillsolvea problem , selectedatrandomfromthe book ?

The tens digit of the 2^(248) is :

If 12 men can reap 120 acres of land in 36 days, how many acres of land can 54 men reap in 54 days?

The area of the floor of a rectangle hall of length 40m is 960m^2. Carpets of size 6m*4m are available, then, how many carpets are required to cover the hall?

A lawn is in the shape of rectanglle of length 60m and width 40m. Inside the lawn there is a footpath of uniform width 1m bordering the lawn. The area of the path is :-

The reading style of Sunny is quite unusual. He reads one page on the first day, 2 pages on the second day, 3 pages on the thrid day etc. How many pages Sunny can read in 24 days?

By an engine the consumption of coal is directly pro portional to the square of its velocity. When velocity is 50 mile/hour then consumption is 100 kg. If cost of coal is 25paise /kg, and expenditure is 9 Rs./hour in second case. Then find the consumption in travelling 250 mile.

A car mechanic purchased four old cars for ₹ 1 lakh. He spent total 2. lakh in the maintenance and repairing of these four cars. What is the average sale price of the rest three cars to get 50% total profit if he has already sold one of the four cars at ₹ 1.2 lakh?

In the given figure O is the centre of the circle and angleCD = 26^(@), find angleAOD :

Whatis the ratio whose terms differ by 40 and the measure of which is 2/7?6: 56b. 14 : 556c. 16 : 56d. 16 : 72

Multiply 83 by 87.

P and Q start running on the circular track in opposite directions they starts from a point A and meet for the first second and third time at B,C and A respectively. what is the ratio of speeds of P and Q?

The S={(1,3,5,7,9,…,99)(102,104,106,…200)} i.e., in the first part there are odd integers less than 100 and in the second part there are even integers greater than 100, but upto 200. The highest power of 5 that can exactly divide the product is

The product of two numbers is 216. If the HCF is 6, then their LCM is:

Out of the four arbitrary non - collinear points three points are taken at a time, then the number of planes that can drawn through the three points is :

In a square ABCD, an equilateral triangle ABE is drawn inside the square on side AB. Diagonal DB cuts the triangle at point O find the value of angle AOB?

There is a three digits number abc and a two digit number xy such that the product of abc with xy is same as the product of cba with yx, if x and y can be similar digits, then the number of such pairs of P and Q is :

A cuboid of dimensions 51, 85 and 102 cm is first painted by red colour then it is cut into minimum possible identical cubes. Now the total surface area of all those faces of cubes which are not red is :

If x, y, z are real numbers such that x+y+z=4 and x^(2)+y^(2)+z^(2)=6, then x,y,z lie in :

If (sec theta + tan theta)/(sec theta - tan theta) = 5/3, then sin theta is equal to

Find the slope and the intercept on the y-axis of the line sqrt3x+3y=6:

What is the area of triangle whose sides are 9cm, 12cm and 15cm?

Two candidates fought an election. One of them got 64% of the total votes and won with 992 votes. What was the total number of votes polled ?

ABCD is a parallelogram of base 3cm and height 4cm. Find the area of the parallelogram.

If the cost price of 12 articles be equal to the selling price of 20 articles, then find the loss percent in the transaction.

The circumference of the circle whose area is 24.64 m^2 is:-

A man bought an article and sold it at a gain of 5%. If he had bought it at 5% less and sold it for Rs. 1 less, he would have made a profit of 10%. The Cost Price(C.P.) of an article was