PSLE The bar graph shows the number of notebooks sold by a shop. The table shows the prices of the notebooks.
- What fraction of the notebooks sold were blue notebooks? Give the answer in the simplest form.
- From the sale of the notebooks, which notebooks collected the least amount of money? Give the answer in letter. (Eg Green = G)
- What was the amount collected in (b)?
Types of notebooks |
Price per notebook |
Yellow |
$1.70 |
Blue |
$1.60 |
Purple |
$1.80 |
Pink |
$1.90 |
(a)
Total number of notebooks
= 120 + 90 + 20 + 70
= 300
Fraction of notebooks that are blue
=
90300 =
310 (b)
Amount collected from the sale of the yellow notebooks
= 120 x 1.70
= $204
Amount collected from the sale of the blue notebooks
= 90 x 1.60
= $144
Amount collected from the sale of the
purple notebooks
= 20 x 1.80
= $36
(Least) Amount collected from the sale of the pink notebooks
= 70 x 1.90
= $133
Amount collected from the sale of the
purple notebooks
P is the least.
(c)
Amount spent on the purple notebooks = $36
Answer(s): (a)
310; (b) P; (c) $36