The ratio of ages of Namrata and Divya is 4 : 3. The sum

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The ratio of ages of Namrata and Divya is 4 : 3. The sum of their ages is 28 years. The ratio of their ages after 4 years will be:

1. 3 : 4
2. 5 : 4
3. 5 : 6
4. 6 : 5

Correct Option: B

Let the present ages of Namrata and Divya are 4x and 3x years respectively; then
According to question,
4x + 3x = 28
∴ x = 4
Hence, their present ages are 16 and 12 years.
So required ratio = (16 +4) : (12 + 4) = 20 : 16 = 5 :4