Bryan needed exactly 86 m of cloth to make 20 small identical streamers and 9 big identical streamers. He had some cloth which was just enough to make all the small streamers and 3 big streamers. He used 119
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 20 small streamers + Length of 9 big streamers = 86 m
1 m = 100 cm
Length of cloth for each small streamer
= 119
12 cm
= 119.5 cm
= 1.195 m
Length of cloth for 20 small streamers
= 20 x 1.195
= 23.9 m
Length of cloth for 9 big streamers
= 86 - 23.9
= 62.1 m
Length of cloth to make 1 big streamer
= 62.1 ÷ 9
= 6.9 m
(b)
Number of remaining big streamers that Bryan needed
= 9 - 3
= 6
Length of cloth that he was short of
= Length of 6 big streamers
= 6 x 6.9
= 41.4 m
Answer(s): (a) 6.9 m; (b) 41.4 m