Will needed exactly 78 m of cloth to make 20 small identical banners and 7 big identical banners. He had some cloth which was just enough to make all the small banners and 4 big banners. He used 120
12 cm for each small banner.
- How much cloth would he need to make 1 big banner?
- How much cloth was he short of to make the remaining big banners?
(a)
Length of 20 small banners + Length of 7 big banners = 78 m
1 m = 100 cm
Length of cloth for each small banner
= 120
12 cm
= 120.5 cm
= 1.205 m
Length of cloth for 20 small banners
= 20 x 1.205
= 24.1 m
Length of cloth for 7 big banners
= 78 - 24.1
= 53.9 m
Length of cloth to make 1 big banner
= 53.9 ÷ 7
= 7.7 m
(b)
Number of remaining big banners that Will needed
= 7 - 4
= 3
Length of cloth that he was short of
= Length of 3 big banners
= 3 x 7.7
= 23.1 m
Answer(s): (a) 7.7 m; (b) 23.1 m