PSLE The bar graph shows the number of rulers sold by a shop. The table shows the prices of the rulers.
- What fraction of the rulers sold were blue rulers? Give the answer in the simplest form.
- From the sale of the rulers, which rulers collected the least amount of money? Give the answer in letter. (Eg Green = G)
- What was the amount collected in (b)?
Types of rulers |
Price per ruler |
Pink |
$2.10 |
Yellow |
$1.80 |
Blue |
$1.50 |
Green |
$1.40 |
(a)
Total number of rulers
= 60 + 80 + 100 + 80
= 320
Fraction of rulers that are blue
=
100320 =
516 (b)
Amount collected from the sale of the pink rulers
= 60 x 2.10
= $126
Amount collected from the sale of the yellow rulers
= 80 x 1.80
= $144
Amount collected from the sale of the blue rulers
= 100 x 1.50
= $150
Amount collected from the sale of the
green rulers
= 80 x 1.40
= $112
(Least) Amount collected from the sale of the
green rulers
G is the least.
(c)
Amount spent on the green rulers = $112
Answer(s): (a)
516; (b) G; (c) $112