Question

Questions:

1. Ava’s mother is 3 times as old as Ava. Her grandmother is twice as old as Ava’s mother. The sum of their three ages is 120. How old is Ava's mother?

2. Three numbers are chosen at random.

The middle number is 4 more than the smallest number.
The largest number is two times the smallest number.
The sum of the 3 numbers is 54.

What is the smallest number?

Answer 1

Ava's mother is 36, A+3A+2(3A)=120. 12+36+72=120. A=12. The smallest number is 12.5, X+(X+4)+2x=54. 12.5+16.5+25=54 :)