Tommy needed exactly 74 m of cloth to make 16 small identical flags and 8 big identical flags. He had some cloth which was just enough to make all the small flags and 3 big flags. He used 120
12 cm for each small flag.
- How much cloth would he need to make 1 big flag?
- How much cloth was he short of to make the remaining big flags?
(a)
Length of 16 small flags + Length of 8 big flags = 74 m
1 m = 100 cm
Length of cloth for each small flag
= 120
12 cm
= 120.5 cm
= 1.205 m
Length of cloth for 16 small flags
= 16 x 1.205
= 19.28 m
Length of cloth for 8 big flags
= 74 - 19.28
= 54.72 m
Length of cloth to make 1 big flag
= 54.72 ÷ 8
= 6.84 m
(b)
Number of remaining big flags that Tommy needed
= 8 - 3
= 5
Length of cloth that he was short of
= Length of 5 big flags
= 5 x 6.84
= 34.2 m
Answer(s): (a) 6.84 m; (b) 34.2 m