Question

A’s mother is twice as old as A’s brother. A is 6 years yqunger than his brother but 4 years older than his sister. If A’s sister is 15 his mother’s age is:

Answer 1

A's sister age=15
then A age=15+4=19
A's brother age=19+6=25
A's mother age =25+25=50(twice the age of A's big brother)

Answer 2

The age of mother is 50 yrs.
Hope it will help you