In a box, 48% of the coins are red, 17% are brown and the rest are grey
- What fraction of the coins is grey? Give your answer in the simplest form.
- There are 560 grey coins in the box. How many coins are there in the box altogether?
(a)
Percentage of coins that are grey
= 100% - 48% - 17%
= 35%
Fraction of coins that are grey
=
35100 =
720 (b)
Number of grey coins = 7 u
7 u = 560
1 u = 560 ÷ 7 = 80
Total number of coins
= 20 u
= 20 x 80
= 1600
Answer(s): (a)
720; (b) 1600