Ratio

The ratio of monthly incomes of Amit, Bunny is 9 : 8 and their monthly expenditures are in the ratio 7:6. If each of them saves Rs. 8000 per month, find the sum of their monthly incomes.

• Rs. 36000

• Rs. 28000

• Rs. 68000

• Rs. 52000

Two numbers are in the ratio 5 : 6. When 6 is added to each, the ratio becomes 7 : 8 then the numbers are

• 10 & 12

• 20 & 24

• 15 & 18

• 5 & 6

The ratio of A to B is 4 : 5 and that of B to C is 2 ∶ 3. If A equals 800, then C equals:

• 1200

• 1500

• 2000

• 1000

If 4P = 5Q = 3R; then what is the ratio P: Q: R?

• 18: 15: 13

• 15: 12: 20

• 19: 17: 13

• 23: 18: 14

Three friends A, B and C started a business by investing a sum of money in the ratio of 5 : 7 : 6 After 6 months C withdraws half of his capital. If the sum invested by. ‘A’ is Rs. 40,000, out of total annual profit of Rs. 33,000, C’s share will be

• Rs. 10,000

• Rs. 12,000

• Rs. 11,000

• Rs. 9,000

The fourth proportional to 75, 192 and 200 is equal to fourth proportional to 90, 384 and Q. Find the value of Q.

• 100

• 126

• 120

• 108

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

• 50

• 150

• 100

• 200

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

• 2:3:4
• 6:7:8
• 6:8:9
• None

If a : b = 3 : 4 and b : c = 6 : 7, then a : b : c =

• 3 : 24 : 7

• 9 : 12 : 14

• 7 : 24 : 3

• 14 : 12 : 9

The ages of two friends is in the ratio 6:5. The sum of their ages is 66. After how many years will the ages be in the ratio 8:7?

• 12 years

• 11 years

• 14 years

• 10 years