PSLE A florist sold flowers from 09 00 to 17 00 last Wednesday. The line graph shows the total number of flowers sold from 09 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 11 00 to 16 00?
(a)
Total number of flowers sold = 124
One-quarter the number of flowers sold
=
14 x 124
= 31
Time that the florist took to sell one-quarter the total number of flower: 12 00
(b)
Between 14 00 to 15 00, there was no flowers sold.
(c)
Number of flowers sold by 11 00 = 19
Number of flowers sold by 16 00 = 109
Duration from 11 00 to 16 00 = 5 h
Average number of flowers sold per hour from 11 00 to 16 00
= (109 - 19) ÷ 5
= 90 ÷ 5
= 18
Answer(s): (a) 12 00; (b) 14 00 to 15 00; (c) 18