PSLE A florist sold flowers from 09 00 to 17 00 last Saturday. 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 12 00 to 16 00?
(a)
Total number of flowers sold = 164
One-quarter the number of flowers sold
=
14 x 164
= 41
Time that the florist took to sell one-quarter the total number of flower: 11 00
(b)
Between 13 00 to 14 00, there was no flowers sold.
(c)
Number of flowers sold by 12 00 = 51
Number of flowers sold by 16 00 = 107
Duration from 12 00 to 16 00 = 4 h
Average number of flowers sold per hour from 12 00 to 16 00
= (107 - 51) ÷ 4
= 56 ÷ 4
= 14
Answer(s): (a) 11 00; (b) 13 00 to 14 00; (c) 14