Math Set - 6

1. 6 mangoes are bought for Rs.5 and 5 mangoes are sold at Rs.6. The profit is

a. 40%  b. 44%
c. 48%  d. 51%

2. 4 percent is gained by selling an article for Rs.3.12. To gain 8 percent the article must be sold at

a. Rs.3         b. Rs.3.10
c. Rs.3.20 d. Rs.3.24

3. The principle that will amount to Rs.411.25 at simple interest at 5% for 3.5 years is

a. Rs.400  b. Rs.300
c. Rs.350  d. Rs.250

4. If x increased by 25% of itself, the result is diminished by 20% of itself and the final value is 300. The value of x is

a. 300  b. 250
c. 200  d. 350

5. An article is sold at a loss of 7.5% and yields Rs.6 less than if sold at a profit of 12.5%. The cost price of the article is

a. Rs.20  b. Rs.30
c. Rs.40  d. Rs.150

6. The time that 15 men will take to plough 33 acres, if 6 men take 10 days to plough 12 acres of land, is

a. 15 days  b. 12 days
c. 11 days  d. 10 days

7. A peon has a salary of Rs.1000 per month and a carpenter earns Rs.30 per day, but he is idle for 65 days in the year. The ratio of their income is(take 1 year=365 days)

a. 4:5  b. 5:6
c. 4:3  d. None of these

8. The price of a horse is 45% more than that of a cow. The total price of both is Rs.1225. The price of cow is

a. Rs.450  b. Rs.500
c. Rs.560  d. Rs.700

9. If 42 out of 60 students pass, the percentage of pass is

a. 60  b. 70
c. 72  d. 80

10. The largest number by which 63, 87 and 123 will be divided to leave the same remainder is

a. 8  b. 12
c. 16  d. 18

11. The number of square meters in one are is

a. 10  b. 100
c. 1000  d. 10000

12. A number changed to 69 on being increased by 15% the number is

a. 45  b. 50
c. 60  d. 64

13. The number of prices each 3.4 cm. long that can be cut from a length of 4.3 meters of a wire is

a. 125  b. 210
c. 126  d. 100

14. The average daily salary per head of all the workers including the officer is Rs.60 and that of 16 officers is Rs.300. The average daily salary per head of the rest is Rs.55. The total number of workers including the officers is

a. 1000  b. 850
c. 750  d. 784

15. A dealer makes 20% profit on his cost and the retailer 20% on his sales. The amount of percentage the consumer pays above the manufacturer’s price is

a. 20%  b. 30%
c. 40%  d. 50%

16. 55 persons can complete a work in 9 hours. The number of extra men that should be employed to finish it in 5.5 hours is

a. 45  b. 42
c. 90  d. 35

17. A book contains 800 pages of 45 lines each. The number of lines per page it must be made up if, it is to be completed in 900 pages is

a. 40  b. 50
c. 35  d. 55

18. An amount doubles itself in 20 years. The time which it will triple itself is

a. 50 years  b. 35 years
c. 40 years  d. 45 years

19. The largest number of 5 digits which is perfect square is

a. 99814  b. 99826
c. 99856  d. 99975

20. A man buys chocolates at Rs.50 per ten. He sales them at Rs.72 per dozen. His gain percent is

a. 6  b. 5
c. 20  d. 15

Answer: 1(b), 2(d), 3(c), 4(a), 5(b), 6(c), 7(c), 8(b), 9(b), 10(b)
11(b), 12(c), 13(c), 14(d), 15(d), 16(d), 17(a), 18(c), 19(c), 20(c).