In a box, 37% of the cards are gold, 18% are silver and the rest are grey
- What fraction of the cards is grey? Give your answer in the simplest form.
- There are 540 grey cards in the box. How many cards are there in the box altogether?
(a)
Percentage of cards that are grey
= 100% - 37% - 18%
= 45%
Fraction of cards that are grey
=
45100 =
920 (b)
Number of grey cards = 9 u
9 u = 540
1 u = 540 ÷ 9 = 60
Total number of cards
= 20 u
= 20 x 60
= 1200
Answer(s): (a)
920; (b) 1200