PSLE The bar graph shows the number of files sold by a shop. The table shows the prices of the files.
- What fraction of the files sold were blue files? Give the answer in the simplest form.
- From the sale of the files, which files collected the least amount of money? Give the answer in letter. (Eg Green = G)
- What was the amount collected in (b)?
Types of files |
Price per file |
Green |
$1.70 |
Pink |
$2.10 |
Blue |
$1.80 |
Orange |
$1.40 |
(a)
Total number of files
= 100 + 70 + 90 + 40
= 300
Fraction of files that are blue
=
90300 =
310 (b)
Amount collected from the sale of the green files
= 100 x 1.70
= $170
Amount collected from the sale of the pink files
= 70 x 2.10
= $147
Amount collected from the sale of the blue files
= 90 x 1.80
= $162
Amount collected from the sale of the
orange files
= 40 x 1.40
= $56
(Least) Amount collected from the sale of the
orange files
O is the least.
(c)
Amount spent on the orange files = $56
Answer(s): (a)
310; (b) O; (c) $56