Question

A is 20 years older than B.he is also six times as old as B. find their ages

Answer 1

let a be x
let b be y


y+20=x
6x=y


by substitution method
x=y/6



y+20=y/6
6y+120=y
5y=-120
y= - 24


x= -24+20
x. = -4

Answer 2

Answer:

Let age of B be x years.

A is 20 years older than B.

Hence,A is x + 20 years old .

A is also six time as old as B.

Hence,x + 20= 6×

5×=20

x=4

Hence,age of A is 24 years and age of B is 4 years .