In a box, 50% of the marbles are pink, 20% are white and the rest are blue
- What fraction of the marbles is blue? Give your answer in the simplest form.
- There are 459 blue marbles in the box. How many marbles are there in the box altogether?
(a)
Percentage of marbles that are blue
= 100% - 50% - 20%
= 30%
Fraction of marbles that are blue
=
30100 =
310 (b)
Number of blue marbles = 3 u
3 u = 459
1 u = 459 ÷ 3 = 153
Total number of marbles
= 10 u
= 10 x 153
= 1530
Answer(s): (a)
310; (b) 1530