Question

isha is 5year younger than her brother after 4 year their ages will be in ratio 2:3 find their present ages​

Answer 1

Answer:

Isha's present age is 6 years and her brother's age is 11 years.

Step-by-step explanation:

Let her brother's present age be x

Isha's age = x - 5

and, after 4 yrs Isha's age will be = (x - 5)+4

Her brother's age will be = x+4

Ratio of their ages = 2:3

ATQ,

$\frac{(x - 5) + 4}{x + 4} = \frac{2}{3} \\ \frac{x - 1}{x + 4} = \frac{2}{3} \\ 3 \times (x - 1) = 2 \times (x + 4) \\ 3x - 3 = 2x + 8 \\ 3x - 2x = 8 + 3 \\ x = 11$

Therefore, her brother's present age is equal to 11 years

and isha's present age is equal to 6 years

Answer 2

Answer:

let the brothers age be x

then isha age =x-5

then x-5+4/x+4=2:3

then (x-1)×3=x+4×2

then 3x-3=2x+8

then we know lhs =rhs

then ,3x-2x=8+3 then age of her brother Is 8+3=11

then the age of isha =11-5=6