PSLE A florist sold flowers from 11 00 to 19 00 last Tuesday. The line graph shows the total number of flowers sold from 11 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 14 00 to 18 00?
(a)
Total number of flowers sold = 200
One-quarter the number of flowers sold
=
14 x 200
= 50
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 14 00 = 61
Number of flowers sold by 18 00 = 113
Duration from 14 00 to 18 00 = 4 h
Average number of flowers sold per hour from 14 00 to 18 00
= (113 - 61) ÷ 4
= 52 ÷ 4
= 13
Answer(s): (a) 13 00; (b) 15 00 to 16 00; (c) 13