The bookshop sells 4 different coloured envelopes. The line graph shows the number of envelopes sold for each colour in a week.
- What was the difference between the number of blue and pink envelopes sold?
- Each yellow envelope cost $0.30 more than each grey envelope. The bookshop collected $75 from selling the grey envelopes. What was the price of 1 yellow envelope?
(a)
Difference between number of blue and pink envelopes sold
= 48 - 44
= 4
(b)
Number of grey envelopes sold = 30
Price of 1 grey envelope
= 75 ÷ 30
= $2.50
Price of 1 yellow envelope
= 2.50 + 0.30
= $2.80
Answer(s): (a) 4; (b) $2.80