From a rope of length 40m 50cm, how many pieces of rope can be made of length 2 1/4 m each?
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Answer:
Length of the rope=40m50cm
=40m 50×
100
1
m ∵1 m=100 and 1 cm=
100
1
m
=40+
100
50
m
=40+
10
5
m
=
10
400+5
=
10
405
m
Length of pieces of rope to be made=2
4
1
=
4
9
m
Number of pieces=
4
9
10
405
=
10
405
×
9
4
=
10×9
405×4
=
5
45×2
=9×2=18 pieces
∴18 pieces of rope can be made of length 2
4
1
m each.
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