PSLE A florist sold flowers from 12 00 to 20 00 last Thursday. The line graph shows the total number of flowers sold from 12 00.
- At what time had the florist sold half 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 13 00 to 19 00?
(a)
Total number of flowers sold = 136
Half the number of flowers sold
=
12 x 136
= 68
Time that the florist took to sell half the total number of flower: 15 00
(b)
Between 17 00 to 18 00, there was no flowers sold.
(c)
Number of flowers sold by 13 00 = 46
Number of flowers sold by 19 00 = 124
Duration from 13 00 to 19 00 = 6 h
Average number of flowers sold per hour from 13 00 to 19 00
= (124 - 46) ÷ 6
= 78 ÷ 5
= 13
Answer(s): (a) 15 00; (b) 17 00 to 18 00; (c) 13