Question

Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she she is twice as old as her brother?

Answer 1

Answer:

mary will be 24

Step-by-step explanation:

when she was 16 her brother was four because if you multiply 4 by itself you will get sixteen and when her brother catches up it goes up some more and she is twice as old which she is 8 years older than him because he is now sixteen years old.