Answer :
So,
We know that the boy is half as old as his sister.
Boy now = 17
Sister now = 34
Boy + 6 = 23
So, we add 6 to the sister's current age.
34 + 6 = 40
The sister will be 40 years old.
We know that the boy is half as old as his sister.
Boy now = 17
Sister now = 34
Boy + 6 = 23
So, we add 6 to the sister's current age.
34 + 6 = 40
The sister will be 40 years old.
b=17
s=2b=17(2)=34
so
34-17=17 therefor
s-17=b
so
s-17=23
add 17 to both sdies
s=40
sister will be 40
s=2b=17(2)=34
so
34-17=17 therefor
s-17=b
so
s-17=23
add 17 to both sdies
s=40
sister will be 40