Question

1 . 2x 2. The ages of Anu and Raj are in the ratio 5-7. Four years from now the ratio of these will be 3:4. Find their present ages. ​

Answer 1

✯ Answer :

• Present age of Anu = 20 years
• Present age of Raj = 28 years

✯ Solution :

Let their age of Anu be 5x.

And let the age of Raj be 7x.

So, after four years, their ages will be (5x + 4) and (7x + 4)

And the ratio would be (5x + 4) : (7x + 4)

But this ratio is given to be 3:4.

Therefore,

(5x + 4) : (7x + 4) = 3:4

Now, let's solve this (5x + 4) / (7x + 4) = 3/4

→ 4 x (5x + 4) = (7x + 4) x 3

→ 20x + 16 = 21x + 12

→ 20x - 21x = 12 - 16

→ x = 4

So! their present age would be:

• 5x = 5 × 4 = 20
• 7x = 7 x 4 = 28

Therefore, the present age of Anu = 20 years ; and the present age of Raj = 28 years.

Answer 2

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