PSLE A florist sold flowers from 10 00 to 18 00 last Thursday. The line graph shows the total number of flowers sold from 10 00.
- At what time had the florist sold one-quarter the total number of flowers sold that day?
- During which one-hour interval was there no flower sold? Give your answer in the following format (Eg 09 00 to 10 00)
- What was the average number of flowers sold per hour from 12 00 to 17 00?
(a)
Total number of flowers sold = 160
One-quarter the number of flowers sold
=
14 x 160
= 40
Time that the florist took to sell one-quarter the total number of flower: 13 00
(b)
Between 15 00 to 16 00, there was no flowers sold.
(c)
Number of flowers sold by 12 00 = 21
Number of flowers sold by 17 00 = 96
Duration from 12 00 to 17 00 = 5 h
Average number of flowers sold per hour from 12 00 to 17 00
= (96 - 21) ÷ 5
= 75 ÷ 5
= 15
Answer(s): (a) 13 00; (b) 15 00 to 16 00; (c) 15