Question

Luca is four times as old as his younger brother. In four years time, Luca will be trice as old as his brother. Find the sum of their ages.

Answer 1

Answer:

40 years

Step-by-step explanation:

Let Luca's brother, age be X

Then, Luca's age will be 4X

After four years

Luca's brother, age be X +4

Then, Luca's age will be 4X+4

According to question

3(X+4)=4X+4

3X+12=4X+4

X=8

Then Luca's age will be =4X=4*8=32

And Luca's brother age will be=X=8

Sum of their ages will be =32+8=40