In a box, 45% of the marbles are white, 10% are black and the rest are green
- What fraction of the marbles is green? Give your answer in the simplest form.
- There are 540 green marbles in the box. How many marbles are there in the box altogether?
(a)
Percentage of marbles that are green
= 100% - 45% - 10%
= 45%
Fraction of marbles that are green
=
45100 =
920 (b)
Number of green marbles = 9 u
9 u = 540
1 u = 540 ÷ 9 = 60
Total number of marbles
= 20 u
= 20 x 60
= 1200
Answer(s): (a)
920; (b) 1200