Question

When i was 4years old my sister was half my age.now iam 100 years old.how old is my sister now

Answer 1

ur sis age=x
ur age=2x
2x=4
x=2
ur sis is 2 yrs younger than u
so when u are 100 yrs old
ur sis would be 98 yrs old

Answer 2

Let you sister's age be x
ATQ, your age is 4

2x=4
x= 4/2
x= 2
Therefore, if your age is 100
Your sisters 's age is 98