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 |
$1.80 |
Blue |
$1.60 |
Green |
$1.90 |
Yellow |
$1.80 |
(a)
Total number of rulers
= 25 + 40 + 20 + 25
= 110
Fraction of rulers that are blue
=
40110 =
411 (b)
Amount collected from the sale of the pink rulers
= 25 x 1.80
= $45
Amount collected from the sale of the blue rulers
= 40 x 1.60
= $64
Amount collected from the sale of the
green rulers
= 20 x 1.90
= $38
(Least) Amount collected from the sale of the yellow rulers
= 25 x 1.80
= $45
Amount collected from the sale of the
green rulers
G is the least.
(c)
Amount spent on the green rulers = $38
Answer(s): (a)
411; (b) G; (c) $38