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SSCCGL Quantitative Aptitude Solved Question Paper 2016

Multiple Choice Questions

21.

Find the fraction which bears the same ratio to 1/27 that 3/7 does to 5/9.

5/9
1/35
45/7
45/7

648 Views

22.
The ratio of numbers of boys to the number of girls in a school of 432 pupils is 5 : 4. When some new boys and girls are admitted, the number of boys increase by 12 and the ratio of the boys to girls changes to 7 : 6. The number of new girls admitted is

12

14

24

24

Original number of boys in school = $5 over 9 cross times 432 space equals space 240$

Number of girls = 432 - 240 = 192
Let the number of girls be x.
According to the question
$fraction numerator 240 plus 12 over denominator 192 plus straight x end fraction equals 7 over 6$
$rightwards double arrow space fraction numerator 252 over denominator 192 plus straight x end fraction space equals space 7 over 6 rightwards double arrow space space 192 space cross times space 7 space plus space 7 straight x space equals space 252 space cross times space 6 rightwards double arrow space space 1344 space plus space 7 straight x space equals space 1512 rightwards double arrow space space space 7 straight x space equals space 1512 space minus space 1344 space equals space 168 rightwards double arrow space space space straight x space equals space 168 over 7 space equals space 24$

624 Views

23.

If the three numbers in the ratio 3:2:5 be such that the sum of the squares is equal to 1862 then which number is the middle one?

223 Views

24.

Two bottles contain acid and water in the ratio 2 : 3 and 1 : 2 respectively. These are mixed in the ratio 1 : 3. What is the ratio of acid and water in the new mixture?

7 : 13
11 : 57
23 : 37
23 : 37

2351 Views

25.

The ratio of the number of boys and girls in a school is 3:2. If 20% of the boys and 25% of the girls are scholarship holders, the percentage of the school students who are not scholarship holders is

239 Views

26.

In two types of brass, the ratios of Copper to Zinc are 8:3 and 15:7 respectively. If the two types of brass be melted and mixed in the ratio 5:2 a new type of brass is obtained. The ratio of Copper to Zinc in this new type of brass is

3 : 2
2 : 3
3 : 4
3 : 4

1538 Views

27.

An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computing each of the remaining problems is

70 seconds
50 seconds
40 seconds
40 seconds

356 Views

28.

A and B have their annual average income Rs. 80,000. B and C have their annual average income Rs. 75,000. C and A have their annual average income Rs. 78,000.The annual income of A is?