Question

Tommy had 40 oranges to give to 3 groups of children.

- The first group ate 30% of the total oranges.
- The second group ate 7 of the total oranges.
- The third group ate 1/8 of the total oranges.
How many oranges were left?

Answer 1

16

Explanation:

1st group = 30% or .3 as a decimal

.3 * 40 = 12

2nd group = ate 7

Third group = 1/8 or .125 as a decimal

.125 * 20 = 5

12 + 7 + 5 = 24

40 -24 = 16