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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 62001. |
After 15 years, Mary's age will be four times of her present age. Find her present age. |
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Answer» Her present age is 5 years |
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| 62002. |
After 15 years , Mary's age will be four times of her present age. Find her present age. |
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| 62003. |
4 years hence the mother will be twice of his son, the sum of present age is 46, find present age |
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Answer» Let the present age of mother and her son be x and y years respectively.It is given that , sum of their present age is 46.=>x+y=46----------(1)Four years hence,Mother's age=x+4Son's age=y+4 It is given that 4 years hence, mother's age will be twice that of son's age.=>(x+4)=2(y+4)==>x-2y=4------------(2) eqn(1)×2=>2x+2y=92eqn(2)×1=>x - 2y=4------------------------------------------------ 3x=96=>x=32=>y=46-x=46-32=14 ∴Mother's present age=32Son's present age=14 Thnks ji |
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| 62004. |
16. Present age of father is 42 years and that of his son is 14years. Find the ratio of(a) Present age of father to the present age of son. |
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| 62005. |
14. What must be subtracted from &r4+ 14x-2r+ 7x-8 so that the resulting polynomial isexactly divisible by 4x2 3x -2 |
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Answer» solve after diviend-remainder=quotient ×divisor |
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| 62006. |
ll nliensIรณn 46 cm by 30 em. Finduiunig the photograph.The length and breadth of a rectangular park are in the ratio 8:5. A path 2 m wide, unng all armund outridnthe park has an area of 640 m2 Find tho d |
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Answer» let the length and breadth be 8x and 5x total length including path = 8x+4 total breadth including Path = 5x+4 area of path = total area - area of park 640 = (8x+4)*(5x+4) - 8x*5x 640=40x²+32x+20x+16-4x² 640=52x+16 -52x=16-640 -52x=624 x=12 length = 8*12=96m breadth = 5*12= 60m please like my answer if you find it useful |
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| 62007. |
The difference between CompoundInterest and Simple Interest on a certainsum for 2 years at 15% per annum isR180. Find the sum.9. |
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| 62008. |
The difference between the compound interest and the simple interest on a certain sum for3 years at 10% per annum is 93 . Find the sum. |
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| 62009. |
Fig. 6.15An Fig. 6.16.ifyz. then prove that AOB1803 bis a line |
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| 62010. |
x + x + 26 + x / 3 = 180 |
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Answer» 3x+26/3 = 180 3x+26 = 540 3x = 540-26 3x = 514 x = 514/3 x = 171.33 |
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| 62011. |
750 watts water pump raises 1200 litres of waterfrom the ground to a water tank in a given time.How many watts water pump is needed to raise1800 litres of water from the ground in the sameamount of time? |
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Answer» 750 pumps 1200 in time tTo pump 1800 we need (750/1200)*1800=1125 watts. |
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| 62012. |
The area of trapezium is 960 cm2. If the parallel sidesare 34 cm and 46 cm, find the distance between them. |
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| 62013. |
( 3 ^ { - 7 } \div 3 ^ { - 10 } ) \times 3 ^ { - 5 } |
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| 62014. |
ot be uue 101cumple is Find AB ir A-Cand BC) |
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Answer» A*B=zero. ......... AB= 0. |
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| 62015. |
LEVEL-212. What must be added to the polynomial f(x) = x+ + 2x3 - 2x² + x - 1 so that theresulting polynomial is exactly divisible by x² + 2x - 3? |
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| 62016. |
The ratio of age of a&b is 7:9 after 4 year the sum of their ages is 104 find present age of a and b |
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Answer» Suppose their ages are7xand 9xnow7x+9x+8= 10416x= 96x= 6 their ages will be7*6= 42 yearsand 9*7= 63 years Thnks ji |
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| 62017. |
49. What must be subtracted from the polynomial pix) = x + 2resulting polynomial is exactly divisible by - 4x +32(CBSE-13-A9EU82]- 13 - 12x + 2. Soma(CBSE-13-DSGZHOX) |
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| 62018. |
9. At a certain rate of simple interest, a certainsum of money amounts to 5440 in3 years and 6400 in 5 years. Find theprincipal and the rate of interest. |
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| 62019. |
11 - ( - 5 ) ^ { 2 } \div ( - 2 ) |
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Answer» 11-(-5)²+(-2)=11-25-2=11-27=-16 |
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| 62020. |
If the difference of compound interest and simple interest on certainamount invested for 2 years at the rate of 2 % per annum is Re. 1, thenlo interest, on certain sumfind the principal. |
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Answer» Let principle be pSI = Px5/2x2/100SI = P/20 =.05P CI = Amount after two years - P= P(1 + 5/200)^2 - P= P(1 + 1/40)^2 - P= P(41/40)x(41/40) - P= 1.0506P - P=.0506P According to given condition CI - SI = 1.0506P -.05P = 1.0006P = 1P = 10000/6P = 1666.7 ans |
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| 62021. |
4. The compound interest, calculaleua certain sum of money for the secondyear is * 1,089 and for the third year it is71,197.90. Calculate the rate of interest andthe sum of money.7oars at a certain |
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Answer» your answer is wr6 |
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| 62022. |
Find the cartesian coordinates of the points (2, 180-), 3, |
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| 62023. |
( 2 ^ { - 9 } \div 2 ^ { - 11 } ) ^ { 3 } |
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| 62024. |
) length46 cm and breadth = 25 cm |
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Answer» thanks |
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| 62025. |
7 m 11 cm \div 3 |
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| 62026. |
Write the equation of ellipse 20x^2 +9y^2 =180 in standard form. |
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| 62027. |
1. Divide the Polynomial P(x)=x4–3x2+4x+5 by the Polynomial g(x)=x2-x+1 andfind the quotient and the remainder. |
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Answer» X²-x+1 ) x⁴-3x²+4x+5 (x²+x-3.............. x⁴+1x² -x³...............- -. +.............. x³-4x²+4x............. x³-1x²+ 1x.............. - + -.............. -3x²+3x+5.....................-3x²+3x-3.....................+ - +..................... 8Hence Remainder is 8Quotient is x² + x - 3 |
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| 62028. |
104 TOJ TUTUuue9. If 1 and -1 are zeroes of the polynomial ax 4 -bx3 + cx + dx + e = 0, show thata+c+e= b + d = 0 |
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| 62029. |
e 2c roes the polunoverify the relations between the 6 Coewălendand the zeyoesciendS-. Sol |
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Answer» Given polynomialx^2 + x/6 - 2 = 06x^2 + x - 12 = 06x^2 + 9x - 8x - 12 = 03x(2x + 3) - 4(2x + 3) = 0(3x - 4)(2x + 3) = 0x = 4/3, - 3/2 For polynomial of formax^2 + bx + c = 0 Sum of zeroes = 4/3 - 3/2 = (8-9)/6 = - 1/6- b/a = - 1/6 Product of zeroes= 4/3*-3/2 = - 2c/a = - 12/6 = - 2 |
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| 62030. |
What must be added to polynomialp(x) 6x5+5x4+1t-3x2 +x 1, so that theresulting polynomial is exactly divisible by3x2 -2x + 4? (Hint: add-r(x) in p(x)) |
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| 62031. |
I + 71 =( |
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Answer» PLEASE HIT THE LIKE BUTTON |
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| 62032. |
what will the SI and amount when:Principal=₹1500Rate=₹12/p.a.Time=3years3months |
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| 62033. |
71÷7 |
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Answer» 71÷7=10.14 your answer is 10.14 |
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| 62034. |
In Fig. 6.37, if ∆ABE~∆ ACD, show that∆ADE~∆ABC. |
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Answer» 1 2 |
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| 62035. |
Fig.3110. In Fig. 32, ABCD is a rectangle of length AB- 40 cm and breadth BC 25 cm. If P, Q, R. Sbethe mid-points of the sides AB, BC, CD and DA respectively, find the area of the shadedregion.:0nswer Book For Wrting an answer.(indluding Heading)UseFig. 322 cm |
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| 62036. |
54 \div 11 |
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Answer» 11)54(4 44 -------- 10 54/11 = 4(10/11) It is right solution R u shore, it is right solution |
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| 62037. |
\frac{54+3 \times 16+2}{180+5 \times 6 \div 3}=? |
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| 62038. |
f a and b are two vectors such that a | 5, b | 4 and a.b 10 find theanglebetween a and b and hence find ax b |
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Answer» mere questions ka ye value nhi h |a×b| bhi find Karna h |
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| 62039. |
8000 for 9 months at 20% per annum compoundedFind the compound interest onquarterly8. |
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| 62040. |
Find the amount of15625 for 9 months as 16% per annum, when the interest is compounded quarterly. |
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| 62041. |
Q. 11 Find compound interest when P= Rs. 10,000, R= 16% PaT-9months interest compounded quarterly |
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| 62042. |
nd2x5+b,whendevdedby(xt4)polynomial bx3 3x2-2eaves the remainder 7i and r spectively. find the valse of b 2 |
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Answer» Like if you find it useful thanks for answer |
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| 62043. |
11Prove that the altitude from vertex of an isosceles triangle bisects the base. |
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Answer» By RHS rule both triangle are congurent so by CPCT BD=DC |
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| 62044. |
5 Prove that the circle drawn on any one of theequal sides of an isosceles triangle as diameterbisects the base. |
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| 62045. |
7 475 o के |
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| 62046. |
Find the CI for.(a)28000, time-6 months, rate12% per annum with interest being compoundedquarterly |
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| 62047. |
475/71 |
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Answer» is sawaal ka answer 6.69 hai 6.6901 is the correct answer 475 ÷ 71 = 6.6901408451 =6.69so 6.69 is the answer of the following question 475÷71= 6.6901....... is the ans of this question correct answer is 6.69014085 correct answer=6.6901408451 6.69 is the correct answer 6•6901 is the right answer. correct answer is 6.690140845070422 please like my answer |
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| 62048. |
(2 . 475 ol ा... |
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| 62049. |
312 \div 54 |
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Answer» 312÷54=5.78 is the value It is right solution I'm not getting correct solutions, how it will got it, If u show me in detail Pls |
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| 62050. |
3.Ifa = S and b = 25, verify a-bb-a. |
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