15 of the flowers in a flower shop were marigolds,
14 of them were sunflowers and the remaining 187 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 -
15 -
14 = 1 -
420 -
520 = 1 -
920 =
1120 11 u = 187
1 u = 187 ÷ 11 = 17
Number of stalks of flowers in the shop
= 20 u
= 20 x 17
= 340
(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 = 340
2 p = 340 - 20
2 p = 320
1 p = 320 ÷ 2 = 160
Number of stalks of flowers sold
= 1 p + 20
= 160 + 20
= 180
Answer(s): (a) 340; (b) 180
