Henry needed exactly 78 m of cloth to make 16 small identical streamers and 8 big identical streamers. He had some cloth which was just enough to make all the small streamers and 4 big streamers. He used 137
12 cm for each small streamer.
- How much cloth would he need to make 1 big streamer?
- How much cloth was he short of to make the remaining big streamers?
(a)
Length of 16 small streamers + Length of 8 big streamers = 78 m
1 m = 100 cm
Length of cloth for each small streamer
= 137
12 cm
= 137.5 cm
= 1.375 m
Length of cloth for 16 small streamers
= 16 x 1.375
= 22 m
Length of cloth for 8 big streamers
= 78 - 22
= 56 m
Length of cloth to make 1 big streamer
= 56 ÷ 8
= 7 m
(b)
Number of remaining big streamers that Henry needed
= 8 - 4
= 4
Length of cloth that he was short of
= Length of 4 big streamers
= 4 x 7
= 28 m
Answer(s): (a) 7 m; (b) 28 m