Question

The age of Abhi, 7 years from now, will be 25% more than the age of Sunny 5 years
hence. 5 years ago, the average of age of Abhi's father and Abhi was 23 years. Abhi
was 4 years old when Sunny was 1 year old. What will be the age of Abhi's father
when Sunny was 10 years old?​

Answer 1

Answer:

I don't know sorry'

Answer 2

Solution :-

given that, Abhi was 4 years old when Sunny was 1 year old.

we can say that, Abhi is 3 years elder than Sunny .

so, Let us assume that, Present age of Sunny is x years.

then,

→ After 5 years Sunny age will be = (x + 5) years.

and,

→ After 7 years abhi age will be = (x + 3) + 7 = (x + 10) years.

A/q,

→ (x + 10) = 125% * (x + 5)

→ (x + 10) = (125/100)(x + 5)

→ 4(x + 10) = 5(x + 5)

→ 4x + 40 = 5x + 25

→ 5x - 4x = 40 - 25

→ x = 15 years.

then,

→ Abhi Present age = 15 + 3 = 18 years.

now, given that, 5 years ago, the average of age of Abhi's father and Abhi was 23 years.

so,

→ 5 years ago , abhi was = 18 - 5 = 13 years old.

therefore,

→ Abhi + Abhi's father = 23 * 2

→ Abhi's father = 46 - 13

→ Abhi's father = 33 years.

hence,

→ Present age of Abhi's father = 33 + 5 = 38 years.

now,

→ Sunny was 10 years old = 5 years ago .

then,

→ Age of Abhi's father 5 years ago = 38 - 5 = 33 years (Ans.)

Hence, when Sunny was 10 years old , the age of Abhi's father will be 33 years.

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