In a box, 30% of the pens are black, 10% are grey and the rest are silver
- What fraction of the pens is silver? Give your answer in the simplest form.
- There are 582 silver pens in the box. How many pens are there in the box altogether?
(a)
Percentage of pens that are silver
= 100% - 30% - 10%
= 60%
Fraction of pens that are silver
=
60100 =
35 (b)
Number of silver pens = 3 u
3 u = 582
1 u = 582 ÷ 3 = 194
Total number of pens
= 5 u
= 5 x 194
= 970
Answer(s): (a)
35; (b) 970