Question

14. A carpet 6 m 20 cm long and 4 m 40 cm broad is
to be covered by a ribbon along its boundaries.
Find the length of the ribbon required. Also find
the cost if 1 m ribbon costs 15.​

Answer 1

Step-by-step explanation:

length of the carpet=6m 20cm

breadth of the carpet=4m 40 cm

so, to cover the boundary we need to find the perimeter

perimeter/length=2×(l+b)

=2×(620cm+440cm)

=2×1060

=2120cm

100cm=1m

2120cm=2120÷100=21.2m

cost of 1m=15rupees

so, cost of 21.2m=21.2×15

=rupees 318 is the cost of 21.2 m

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