Practice30 Create account

The present ages of A and B are in the ratio 5:7. Six years from now the ratio becomes 3:4. What is A's present age? (answer in years)

Competition practiceRatio, Proportion & Mixtures

A30
B42
C35
D25

Step-by-Step Solution

Let ages be

5 x

and

7 x . (5 x + 6) / (7 x + 6) = 3/4

→

20 x + 24 = 21 x + 18

→

x = 6

;

A = 5 \times 6 = 30

.

Answer: A) 30

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Ratio, Proportion & Mixtures practice questions

More Ratio, Proportion & Mixtures practice

The ratio of the present ages of A and B is 5 : 7. Four years hence, the ratio will…A dairy in Anand has 80 litres of milk mixed with water in the ratio 5 : 3. How many…Two numbers are in the ratio 5 : 8. If 6 is added to each, the ratio becomes 2 : 3. Find…Kiran's and Omkar's present ages are in the ratio 3 : 5. Ten years from now the ratio…A dairy in Anand has 55 litres of milk and water mixed in the ratio 8 : 3. How many…