Question

tina is three times as old as her brother marco .in six years, tina will be twice as old as marco

Answer 1

Answer:

Let

Present age of Maria = m

Present age of Brother = b

Given

Maria is three times as old as her brother

m=3b ..........(1)

In four years means we have to add 4 in their present ages

m+4=b+4

then Maria will be twice as old

m+4=2(b+4)

m+4=2b+8

m=2b+8-4

m=2b+4 .............(2)

Plug in the value of m from (1) to (2)

3b=2b+4

3b-2b=4

b=4

Brother is 4 years old