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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.
| 72601. |
12. A can do a job in 3 h, B in 4 h, and C in 6 h. If they all work together and receive 360, howmuch money should each get? |
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| 72602. |
1. Can the number 6", n being a natural number, end12010 (T-I)Iwith the digit 5? Give reasons |
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Answer» I think you're asking for 6^n.No, 6^n cannot end with five.For - "A ^ n"( where A is any integer ), to end with 5 ( or have 5 in unit place )."A"must be in the form of 2 ^ m X 5 ^ n .However, here 6 = 2 X 3ie. 6 cannot be written in the form of 2^m X 5^n.So, 6 ^n cannot end with five. And for, 6n.This too can't end with five, as all multiples of 6 end onlywith 0, 2,4, 6,8. |
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| 72603. |
A bookhasin a2 pages. Dineshread 36 poner en Mancheyand 57pageson thesdayHommany pages are lefttoread |
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Answer» no pages will be left No pages his leftHe read one pages exert 99 pages the reader to read 99 pages is the correct answer 99,pages reader have to read. Tota no. of pages in a book = 192No. of books read on Monday = 36No. of books read on Tuesday = 57 Therefore, the total pages read = 36 + 57 = 93 Therefore, pages left to read = 192 - 93 = 99 pages no pages will be left to read |
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| 72604. |
Calculate the mode:C.1 0-10 10-20 20-30 30-40f 2 3 5 2 |
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| 72605. |
20 pages of a book containing 100 pages while Sarita read 5 of the book. Whoread more? |
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| 72606. |
TX) 11(viii)What fraction of an hour is 24 minutes?14How many natural numbers are the10n what fraction of them |
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Answer» fraction of an hour of 24 m =24/60= 6/15 = 2/5 how to find irrational number between two irrational number fraction of an hour of 24m=24/60 =6/15 =2/5 2/5 is the correct answer of the given question we want to factor 24 by 60 because the question is fact fraction of an hour of 24 minutes then we want to divide the answer will get 2 by 5 correct answer is 24/60 = 2/5 |
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| 72607. |
39 y ^ { 3 } \left( 50 y ^ { 2 } - 98 \right) \div 26 y ^ { 2 } ( 5 y + 7 ) |
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| 72608. |
39 y^{3}\left(50 y^{2}-98\right) \div 26 y^{2}(5 y+7) |
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| 72609. |
4What is the value of the fraction? ěm+3m-3m8 16 4 |
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| 72610. |
( \frac { 2 } { 3 } o f \frac { 6 } { 5 } ) + ( \frac { 4 } { 5 } - \frac { 3 } { 5 } \div \frac { 3 } { 2 } ) |
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| 72611. |
Solve the equation 5x-y = 5 and 3x-y = 3 graphically. |
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Answer» Here red line is 5x - y - 5 = 0blue line is 3x - y - 3 = 0so x = 1 and y = 0 |
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| 72612. |
1 1If f(x)= sin x1(A) 53 cos x 11 3 cos x, then the maximum value of f(x) issin x 1(B) 10(C) 15(D) 20 |
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Answer» D) is the correct answer |
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| 72613. |
maximum number of columns in which they can march?4. Use Euclid's division lemma to show that the square of any positive integer is either ofthe form 3m or 3m + 1 for some integer m.(Hint: Letx be any positive integer then it is of the form 34, 3q+1 or 34 +2. Now squareeach of these and show that they can be rewritten in the form 3m or 3m +1.) |
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| 72614. |
Show that the square of any positive integer is either of the form 3m or 3m+1 forsome integer m |
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| 72615. |
What is the nature of roots of quadratic equation 5x -7x+2 0 |
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| 72616. |
2If a person doing 3rd work receives 72remuneration, a person doing 3th work wouldreceive remuneration.A. 36 B. 18 C. 72 D. 144 |
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| 72617. |
In a class of 200 students, 60% read physics, 50% read biology and 30% read both. Find the number of students who read neither physics nor biology ? |
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Answer» use formula:total- neither= A+ B - bothtotal= 200physics (A)= 120biology (B)= 100both= 60 put the values in above formula 200- neither= 120 +100 - 60neither= 40 therefore 40 students neither read physics nor biology 40 is the correct answer of the given question |
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| 72618. |
is their a natural number n for which 6^n ends with digit 0 give resons....... |
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Answer» No, because 6ⁿ have always 6 as its last digit. 6 = 66² = 366³ = 216 thank you for your answer... 😃 |
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| 72619. |
Ila read 25 pages of a book containing 100 pages. Lalita read of the sanbook. Who read less? |
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| 72620. |
(d) 90 pages can be read in 1 hour.pages can be read in 1 minute.pages can be read in 24 minutes. |
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| 72621. |
3 25+39+350-29 |
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Answer» 3p/5+9/5q+2p/5-4q/5=5p/5+5q/5=p+q |
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| 72622. |
Givethe equation ofr2.8-6=0 |
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Answer» the value of x in the given equation is -2,3 |
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| 72623. |
24. For the following data, find the mode.Class intervals1-3Frequency14|3-5165-74OR7-949-11,2- |
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Answer» 4 correct answer your question |
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| 72624. |
14) Calculate the median of the following distribution.al 100-150 150-200 200-250 250-300|f 63 5 20.5) Calculate the made of the following dich..300-35010 |
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| 72625. |
Which term of the AP: 21, 18, 15, ..... is -81? Is there any term 0? Give reason for your answer. |
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| 72626. |
masinaIn the As followingtumb0 -4 .0 ,6 |
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Answer» -4, -2, 0, 2, 4, 6 ans= -2, 0, 2, 4 |
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| 72627. |
I((3m = 7n) - n(3m = 7n) |
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Answer» l(3m - 7n) - n(3m - 7n) = 3lm - 7ln - 3mn + 7n*n = 3m(l-n) - 7n(l-n) = (3m-7n)(l-n) thanks |
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| 72628. |
(7m-5n)(7m+5n) (5m+7n) (5m-7n) |
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Answer» (7m-5n)(7m+5n)(5m+7n)(5m-7n)(49m^2-25n^2)(25m^2-49n^2) |
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| 72629. |
9) Find the roots of the equation 5x -6x-2 0 by the method of completingsquare. |
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| 72630. |
7. The dianielu7. The diaetoFind the ratio of their surface areas.ispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is5 cm. Find the outer curved surface area of the bowl. |
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| 72631. |
s. A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of thei5 cm. Find the outer curved surface area of the bowl. |
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| 72632. |
SuP2vedて33000 in 10 months. In each month after the first, he saves?100 more thanmuch did he snve in the first month?he did in the preceding month. How+ 100) + (x+ 200) 900) 33000+ (100 + 200 + 300 + + 900) = 330009(100 + 900)-33000-e 10x-28500-, x-2850.]210x + |
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Answer» Thanks |
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| 72633. |
Anil borrowed 18000 from Rakesh at 8% per annum simple interest for 2 years. IfAnil had borrowed this sum at 8% per annum compound interest, what extra amountwould he has to pay? |
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| 72634. |
ad borrowed,000 from Jamshed at 6% per annum simple interest for 2 yearsould I have to pay to him?19, lthis sum at 6% per annum compound interest, what excess am |
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| 72635. |
Fig. 10.39ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. Ii DBC-70.<BAC is 30°, find < BCD. Further, ifAB-BC, find ZECD. |
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| 72636. |
ean, median and mode of the following data:CBSE 2008Class-1010-5050-100 100-150 150-200 200-250 250-300 300-35053Frequency 2 3 5 |
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Answer» thank |
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| 72637. |
2. Answer the following uetions brtefly0) What is meant by a water divide? Give an example. |
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Answer» Ans :- Any elevated area, such as a mountain or an upland, which separates two drainage basins is known as water divide; for example, the water divide between the Indus and the Ganga river systems. |
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| 72638. |
(D2-3D+2)Y=0 GIVE Y=0 AND dy/dx=0 |
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| 72639. |
to the given equation7n + 5 = 19 (n = 2)4p-3=13 (p = 0)d from y is 8.e divided by 5 give |
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Answer» when n=27×2 +5 = 19 , RHS is also 19 so satisfied when p=04×0-3 = -3 but RHS is 13 so not satisfied |
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| 72640. |
Fig. 10.39ABCD is a cyclic quadrilateral whose diagonals intersect at a point E4 ECD.If 4 DBC-70BACis 30, find Z BCD. Further, AB-BC, find 4 |
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| 72641. |
a Solve 7-30x-25by completing square method. |
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Answer» 15 kahase ayA it's wrong |
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| 72642. |
The head of a construction company wants to give 4 decorated hemispherical bowls eachto 500 workers on Diwali. The radius of a bowl is 10.5cm. If the decoration of pattern onouter curved surface costs5 per 100cm2, then calculate the cost paid by the head |
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Answer» Area of hemisphere is 2 x pie x r to the power 2therefore , total balls =4 x 500 = 200 ballsnow , area of one ball = 2*22/7*10.5*10.5=712.8 cm2area of 2000 balls= 2000*712.8=14,25,600cm2therefore, cost of designing = (14,25,600*5)/100=Rs.71,280 |
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| 72643. |
Worksheetin the blanks:78 + 0-61+21+ L = 120+0 - 6 = 194 +44 = 20 +Add 12 sets of 2 to 7025 fifty-paise coins = Tp.11 metres = L ama15 bicycles have wheels404 + 4 + 10-3 tens =(9) What isg) What is the P.V. of 6 in 34682470) How many 10-p.coins in 90? |
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Answer» 1answer 87 ,2answer 72,3answer48 1 answer 87 ,2answer 72,3answer48 1. 882. 723. 484. 945. 1st ans 86 2nd ans 72 3rd ans 48 5th ans 1250paise 7th ans 30 wheels 8th ans 108 9th ans tens 10th ans 90,000 1. 11+21+88=1202.72 88 70 48 94 12 Rs 1 p 1.1dm 301089) --10) 900p 1) 882) 723) 484) 945) 20006) 1107) 308) 11410) 900 |
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| 72644. |
4, A man invests? 46875 at 4% per annum compound interest for 3 years. Calculate :the interest for the first yearGiy the amount standing to his credit at the end of second yearfff) the interest for the third year |
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| 72645. |
. 7-12 (2 Mark) (iv) Questions no. 13-22 (3 Mark) (v) Questions no. 2Section A)Find the area of the quadrant of a circle whose circumference is 44cm. |
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Answer» Let radius be r cm We are given, Circumference, 2πr = 44 so,πr = 22 so, 22/7*r = 22 r = 7 cm So, area of Quadrant = 1/4 *πr² = 1/4 * 22/7 * 7*7 = 22*7/4 = 154/4 = 38.5 cm² hit like if you find it useful |
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| 72646. |
tor the payroll departetasks like:reporting Pre can seaa mobilSWAMI SANT DASS PUBLIC SCHOOLFIRST PERIODIC TEST (2019-20)oices, purdCLASS-IXRoll No.usable bySUBJECT: MATHEMATICSSET-AM.M. : 50TIME : 1% Hrs.billing datGeneral Instructionsords which1. All quetions are compulsory.Section A contains 10 questions of 1 mark each.2.uired. IthSectioin B contains 3 questions of 2 marks each.3.vailabilitySection C contains 6 questions of 3 marks cach.4.Section D contains 4 questions of 4 marks each.5.oftware(SECTION-A)[1x10=10]are whic1. Every rational number is(1)(a) A natural no.(b) An integerent frore applic(c) A real no.(d) of thesebattery 2. If gx+1=64 what is the value of 32x+1.(1)nline a(b) 3(c) 27(d) of these3. Abscissa of all the points on the x-axis can beocial n(a) O(b) 1(c) Any number(d) of these4. Which angle is not possible to construct with ruler andcompass?(a) 37.50(b) 75°(C) 40°(d) of these5. If one angle of a triangle is equal to the sum of the other twoangles, then the triangle is(1)(a) An isosceles triangle (b) An obtuse triangle(c) A right triangle (d) of these6. Find two irrational numbers whose sum is a rational number.(1)7. Find the perpendicular distance of the point P(4, 6) fromX-axis.(1)Set-A Page 1 of 3 |
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Answer» 1 .every rational numbers is a real numbet |
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| 72647. |
\begin { equation } x^{2}+14 x+40 \end { equation } |
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| 72648. |
Solve the equation x^{4}-6 x^{3}+11 x^{2}-10 x+2=0give that 2+\sqrt{3} is a root of the equation. |
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| 72649. |
ntenur tioite has bfour questions of 3 marks each and three questions of 4 markhave to attempt only one of the alternatives in all such questUse of calculators is not permitted.SECTION A1. Write the multiplicative inverse of2 Name a quadrilateral whose diagonals are equal.. When a die is thrown, find the probability of getting an odd r4. Find the number of digits in the square root of 44897 |
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Answer» 1. 7/2 2. Square 3. Since there are three odd numbers on a die (1, 3, and 5) and 6 numbers on a die total, you have a 3/6 chance of getting an odd number, which reduces to1/2. tq for sending |
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| 72650. |
use completing squre method and solve 3xsqure-5x+2 |
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Answer» yaha 25/36kese aaye aese AK AK step se solve kariye plz it very important question for me 4 marks after solve this also please like |
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