In a box, 45% of the stamps are brown, 10% are blue and the rest are red
- What fraction of the stamps is red? Give your answer in the simplest form.
- There are 432 red stamps in the box. How many stamps are there in the box altogether?
(a)
Percentage of stamps that are red
= 100% - 45% - 10%
= 45%
Fraction of stamps that are red
=
45100 =
920 (b)
Number of red stamps = 9 u
9 u = 432
1 u = 432 ÷ 9 = 48
Total number of stamps
= 20 u
= 20 x 48
= 960
Answer(s): (a)
920; (b) 960