1. Find the third proportional to 9 and 12 ?

48

9

16

108

Answer: 108

Explanation:


2. If a:b=1:2 and b:c=3:4 find a:b:c ?

3:6:8

1:2:4

3:12:6

3:8:6

Answer: 3:6:8

Explanation:


3. If the ratio of men to women at a party is 4:7, which of the following could be the number of people at the party ?

64

70

50

66

Answer: 66

Explanation:


4. A mixture contains alcohol and water in the ratio 4 : 3. If 5 litters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture ?

18

10

15

12

Answer: 10

Explanation:


5. Rs. 120 are divided among A, B, C such that A's share is Rs. 20 more than B's and Rs. 20 less than C's. What is B's share ?

Rs 24

Rs 10

Rs 28

Rs 20

Answer: Rs 20

Explanation:


6. In a college, the ratio of the number of boys to girls is 8 : 5. If there are 160 girls, the total number of students in the college is ?

100

416

250

260

Answer: 416

Explanation:


7. In a mixture of 45 litters, the ratio of sugar solution to salt solution is 1:2. What is the amount of sugar solution to be added if the ratio has to be 2:1 ?

5:4

2:1

6:7

1:5

Answer: 2:1

Explanation:


8. Salaries of Ravi and Sumit are in the ratio 2:3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40:57. What is Sumit's salary ?

46800

36700

38000

50000

Answer: 38000

Explanation:


9. A bag contains 50 P, 25 P and 10 P coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type respectively ?

160, 360, 200

360, 160, 200

200, 360,160

200,160,300

Answer: 160, 360, 200

Explanation:


10. Pencils, Pens and Exercise books in a shop are in the ratio of 10: 2 : 3. If there are 120 pencils, the number of exercise books in the shop is ?

36

46

56

26

Answer: 36

Explanation:

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