In a box, 30% of the cards are red, 10% are black and the rest are yellow
- What fraction of the cards is yellow? Give your answer in the simplest form.
- There are 540 yellow cards in the box. How many cards are there in the box altogether?
(a)
Percentage of cards that are yellow
= 100% - 30% - 10%
= 60%
Fraction of cards that are yellow
=
60100 =
35 (b)
Number of yellow cards = 3 u
3 u = 540
1 u = 540 ÷ 3 = 180
Total number of cards
= 5 u
= 5 x 180
= 900
Answer(s): (a)
35; (b) 900