Question

the sum of the ages of two brothers in 24 .in three years time the elder brother will be twice as old as the younger brother . how old are the brothers​

Answer 1

Answer:

The sum of the ages of two brothers is 24 years."

x + y = 24

y = 24 - x; use for substitution

:

"In three years time, the elder brother will be twice as old as younger brother."

(x+3) = 2(y+3)

x + 3 = 2y + 6

x = 2y + 6 - 3

x = 2y + 3

:

how old are the brothers?

:

Substitute (24-x) for y

x = 2(24-x) + 3

x = 48 - 2x + 3

x + 2x = 51

3x = 51

x = 51%2F3

x = 17 yrs

then

24 - 17 = 7 yrs is y's age

;

:

Check solution in the statement:

In three years time, the elder brother will be twice as old as younger brother."

20 = 2(10)

Answer 2

Answer:

Hope it is useful to you.