In a box, 41% of the coins are white, 11% are purple and the rest are black
- What fraction of the coins is black? Give your answer in the simplest form.
- There are 480 black coins in the box. How many coins are there in the box altogether?
(a)
Percentage of coins that are black
= 100% - 41% - 11%
= 48%
Fraction of coins that are black
=
48100 =
1225 (b)
Number of black coins = 12 u
12 u = 480
1 u = 480 ÷ 12 = 40
Total number of coins
= 25 u
= 25 x 40
= 1000
Answer(s): (a)
1225; (b) 1000