The bar graph shows the number of notebooks sold by a stationery shop on a Friday.

1. Which coloured notebook did the stationery shop collect the least money from the sale? Give your answer in number. (Eg 1).
2. What was the amount of money collected from (a)?

Colour of notebook	Price per notebook
(1) Yellow	$0.60
(2) Gold	$1.75
(3) Purple	$1.60
(4) Brown	$2.60

(a)
Number of notebooks sold
(1) Yellow notebooks: 51
(2) Gold notebooks: 35
(3) Purple notebooks: 44
(4) Brown notebooks: 45

(1) Amount collected from sale of yellow notebooks
= 51 x 0.60
= $30.60

(2) Amount collected from sale of gold notebooks
= 35 x 1.75
= $61.25

(3) Amount collected from sale of purple notebooks
= 44 x 1.60
= $70.40

(4) Amount collected from sale of brown notebooks
= 45 x 2.60
= $117

Coloured notebook that the stationery shop collected the least money from the sale
= Yellow
= 1

(b)
Amount that was collected from the sale of the yellow notebooks = $30.60

Answer(s): (a) 1; (b) $30.60