19 of the flowers in a flower shop were lilies,
12 of them were carnations and the remaining 105 stalks were marigolds.
- How many stalks of flowers were there in the shop?
- At the end of the day, the number of flowers left was 8 less than the number of flowers sold. How many stalks of flowers were sold?
(a)
Fraction of stalks of flowers that were marigolds
= 1 -
19 -
12 = 1 -
218 -
918 = 1 -
1118 =
718 7 u = 105
1 u = 105 ÷ 7 = 15
Number of stalks of flowers in the shop
= 18 u
= 18 x 15
= 270
(b)
Number of stalks of flowers sold = 1 p + 8
Number of stalks of flowers left = 1 p
Total number of stalks of flowers
= 1 p + 1 p + 8
= 2 p + 8
2 p + 8 = 270
2 p = 270 - 8
2 p = 262
1 p = 262 ÷ 2 = 131
Number of stalks of flowers sold
= 1 p + 8
= 131 + 8
= 139
Answer(s): (a) 270; (b) 139