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Maths Quiz for KVS and NVS Exams 2016

1. The average age of 40 girls in a class is 15. The average age of a group of 18 girls in the class is 16 and the average age of another 12 girls in the class is 14. What is the average age of the remaining girls in the class?
(a) 15.25 years
(b) 14.40 years
(c) 14.75 years
(d) 15.25 years

2. A dealer bought an item at 10% discount on its original price. He sold it at 35% more than the original price. What percentage profit did he get?

(a) 25%

(b) 45%
(c) 20%
(d) 50%

3.  If Rajesh’s salary is 30% more than Amit’s salary, the how many percent is Amit’s salary less than that of Rajesh’s?

(a) 26%

(b) 23%
(c) 20%
(d) 27%

4. The population of a city is 1500000. It increases by 10% during 1st yr, decreases by 20% in 2nd yr and increases by 30% in the 3rd yr. The population after 3 yr is?

(a) 1716000

(b) 1750000
(c) 1650000
(d) 1600000

5. X, Y and Z undertake to complete a piece of work for Rs 1950. X works for 8 days, Y for 9 days and Z for 12 days to complete the work. If their daily wages are in the ratio of 3 : 5 : 4, what does Z get?

(a) 400

(b) 750
(c) 650
(d) 800

6.  A radio is sold for Rs 990 at a profit of 10%. What would have been the gain or loss in percentage had it been sold for Rs 880?

(a) 19/3% gain

(b) 17/3% loss
(c) 17% gain
(d) 20/9% loss

7. A person’s present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?

(a) 36

(b) 38
(c) 40
(d) 42

8. The least five-digit perfect square number which is divisible by 3, 4, 5, 6, 8 is

(a) 14400

(b) 10800
(c) 10200
(d) 32400

9. From a vessel containing 100L of wine, 10L are drawn out and an equal amount of water is added. From the mixture, 10L is again drawn out and same quantity of water is added. What is the final ratio of wine to water?

(a) 90:10

(b) 91:9
(c) 81:19
(d) 80:20

10. What will be remainder when (6767 + 67)  is divided by 68 ?

(a) 1

(b) 63
(c) 66
(d) 67