Question

The ratio of present ages of Reena and her mother is 2:7. After 2 years the

ratio of their ages will be 2:3. What is Reena’s present age?​

Answer 1

Answer:

(2x+2)/(7x+2)=2/3

6x+6=14x+4

8x=2

x=1/4=0.25

reena age is 2x=2*0.25=0.5

Answer 2

Answer:

6 months

Step-by-step explanation:

Let the present age of Reena be 2x.

Then, her mother's present age is 7x.

After 2 years:

Reena's age becomes 2x + 2

Mother's age becomes 7x + 2

Given, $\frac{2x+2}{7x+2} = \frac{2}{3}$

6x + 6 = 14x + 4

8x = 2

x = 0.25

2x = 0.5

Therefore Reena's present age is 6 months

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