In a box, 36% of the stamps are green, 16% are grey and the rest are black
- What fraction of the stamps is black? Give your answer in the simplest form.
- There are 528 black stamps in the box. How many stamps are there in the box altogether?
(a)
Percentage of stamps that are black
= 100% - 36% - 16%
= 48%
Fraction of stamps that are black
=
48100 =
1225 (b)
Number of black stamps = 12 u
12 u = 528
1 u = 528 ÷ 12 = 44
Total number of stamps
= 25 u
= 25 x 44
= 1100
Answer(s): (a)
1225; (b) 1100