MATHS KEY
1. A sum of Rs.8, 500 is to be divided among 5 men, 6 women and 8 boys in the ratio of 10:7:1. The share of one woman will be _______
(a) Rs.85 (b) Rs.385 (c) Rs.850 (d) Rs.595
ANS:-D
2. Gudia purchased a watch at 9/10th of its selling price and sold it at 80% more than its selling price. Her Gain is?
(a) 18 % (b) 20% (c) 10 % (d) None of these
ANS:-B
3. A Fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally he had:
(a) 588 apples (b) 600 apples (c) 672 apples (d) 700 apples
ANS:-D
4. In first 10 over’s of a cricket game the run rate was only 3.2. What should be the run rate in the remaining 40 over’s to reach the target of 282 runs?
(a) 6.25 (b) 6.5 (c) 6.75 (d) 7.0
ANS:-A
5. How much time will it take for an amount of Rs.450 to yield Rs.81 as interest at 4.5% per annum of simple interest?
(a) 3.5 years (b) 4.5 years (c) 5 years (d) 4 years
ANS:-D
6. The ratio between length and the breadth of rectangular park is 3:2. If a man cycling along the boundary of the park at the speed of 12 km/ph completes one round in 8 min. Then the area of the park (in sq. m) is:
(a) 15360 (b) 153600 (c) 30720 (d) None of these
ANS:-B
7. If the radius of circle is 7cm then the area of circle is:
(a) 153.86 cm2 (b) 145.22 cm2 (c) 150.00 cm2 (d) 152.67 cm2
ANS:-A
8. The tax payer exempted of income tax for the first Rs.40, 00,000 of his annual income and for the rest of the income, he has to pay tax at the rate of 20%. If he pays Rs.3160 annually as income tax, find his monthly income:
(a) Rs.4850/- (b) Rs.4650/- (c) Rs.4550/- (d) None of these
ANS:-B
9. The perimeter of an isosceles triangle is 42cm and its base is 1 ½ times each of the equal sides. Find the length of each side of triangle:
(a) 12cm, 12cm, 8 cm (b) 6cm, 6cm, 9cm (c) 18 cm,18cm,24 cm (d) None of these
ANS:-A
10. Find the total surface area of a cylinder having radius of the base 14cm and height 30cm?
(a) 3872 cm2 (b) 4872 cm2 (c) 3782 cm2 (d) None of these
ANS:-A
11. When the fractions
(a) (b)
(c) , , (d)
ANS:-C
12. How many cubes of 3cm edge can be cut out of a cube of 18cm edge?
(a) 216 (b) 516 (c) 36 (d) None of these
ANS:-A
13. A reduction of 10% in the price of sugar enables a shopkeeper to obtain 25 Kg more for Rs.2250. The original price for Kg was
(a) Rs.8 (b) Rs.9 (c) Rs.10 (d) Rs.11
ANS:-C
14. The cost price of 19 mangoes is equal to the selling price of 16 mangoes. The gain percent is:
(a) 3
ANS:-C
15. A train travelled distance of 10 km, 20 km and 30 km at speeds of 50 km/hr, 60 km/hr and 90 km/hr respectively. The average speed of the train (in km/hr) was:
(a) 66.67 (b) 60 (c) 69.23 (d) None of these
ANS:-C
16. Find the smallest number which is divisible by 12, 15, 20 and is a perfect square:
(a) 400 (b) 180 (c) 900 (d) 1000
ANS:-C
17. If 6 men can do a piece of work in 20 days and one man can do the work of two boys, then in how many days can 10 men and 5 boys do the same work:
(a) 8 days (b) 10 days (c) 12 days (d) none of these
ANS:-D
18. A train of length 150m takes 40.5 seconds to cross a tunnel of length 300m. The speed of the train (in km/hr) is:
(a) 13.33 (b) 26.67 (c) 40 (d) 400
ANS:-C
19. If a number is multiplied by three fourth of itself, the value thus obtained is 10800. What is that number?
(a) 210 (b) 180 (c) 120 (d) 160
ANS:-C
20. If the three fourth of a number is subtracted from the number, the value so obtained is 163. What is that number?
(a) 625 (b) 562 (c) 632 (d) 652
ANS:-D
21. In a division sum, a student took 63 as divisor instead of 36. His answer was 24. The correct answer is:
(a) 36 (b) 42 (c) 32 (d) none of these
ANS:-B
22. Which one of the following is a true statement?
(a) ∏ and
(c) ∏ is rational and
ANS:-D
23. If one kilometer is equal to 10 hectometer, then 1 hectometer is equal to:
(a) 10 decameters (b) 1 decameter (c) 100 decameters (d) 10 decimeters
ANS:-A
24. The average of eight numbers taken together is 12. Two of these numbers are 0 and the remaining numbers are equal. What is the value of the non-zero number?
(a) 12 (b) 14 (c) 16 (d) 18
ANS:-C
25. The average salary of all workers in a workshop is Rs.850/-. There are seven technicians whose average salary is Rs. 1000/- and average salary of other is Rs.780/-. What is the total number of worker in the workshop?
(a) 18 (b) 20 (c) 21 (d) 22
ANS:-D
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Prepared by the ipaspandhra through experience faculty. This key has no concerned with the Department of Posts or any other examination nodal agency. This is only illustrative and no legal validity.
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