110 of the flowers in a flower shop were carnations,
15 of them were daisies and the remaining 140 stalks were lilies.
- How many stalks of flowers were there in the shop?
- At the end of the day, the number of flowers left was 20 less than the number of flowers sold. How many stalks of flowers were sold?
(a)
Fraction of stalks of flowers that were lilies
= 1 -
110 -
15 = 1 -
110 -
210 = 1 -
310 =
710 7 u = 140
1 u = 140 ÷ 7 = 20
Number of stalks of flowers in the shop
= 10 u
= 10 x 20
= 200
(b)
Number of stalks of flowers sold = 1 p + 20
Number of stalks of flowers left = 1 p
Total number of stalks of flowers
= 1 p + 1 p + 20
= 2 p + 20
2 p + 20 = 200
2 p = 200 - 20
2 p = 180
1 p = 180 ÷ 2 = 90
Number of stalks of flowers sold
= 1 p + 20
= 90 + 20
= 110
Answer(s): (a) 200; (b) 110
