Let the actual ages of Supriya and her mother be 2x and 9x. The age of her mother at the time of Supriya’s birth was 28 years. Therefore, the difference between Supriya and her mother's age will always remain 28 years.

∴ 9x – 2x = 28 ⇒ x = 4. Hence their present ages are 8 and 36 yrs.

So their present ages are 24 yrs and 18 yrs.

∴ (7x - 2) / (12x - 2) = 3/8

⇒ x = 0.5. So actual ages are 7(0.5) = 3.5 years and 12 (0.5) = 6 years.

As per the question, (3x + 10) = 2/1(x+10) ⇒ 3x + 10 = 2x + 20 ⇒ x = 10.

Hence age of Raunak = 10 years and hence his Farookh’s present age is 30 years.

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Then, y + (y + 4) + (y + 8) + (y + 12) + (y+ 16) = 80 ⇒ 5y = 40 ⇒ y = 8.

So the age of the youngest child y = 8 years.

As per the question, (6x+5) / (5x+5) = 7/6 ⇒ 6(6x + 5) = 7(5x + 5) ⇒ 36x + 30 = 35x + 35

⇒ 36x - 35x = 35 – 30 ⇒ x = 5. ∴ Amrit's present age = 5x = 30 years.

∴ (2x + 3) + 2x + x = 53 ⇒ 5x = 50 ⇒ x = 10. Hence, Bomkesh's age = 2x = 20 years.