Question

10. Prachi wants to border handkerchief with a lace. Each handkerchief is in the shape of a square
of side 20 cm.
a) How much lace should she purchase to border 10 handkerchiefs without any wastage?
b) How much money should she pay to the shopkeeper if lace is available is available at rupees 2 per cm?​

Answer 1

Answer:

one lace = 20 cm

one handkerchief have 4 lace means 80 cm lace in 1 hanky

( I ). 10 handkerchief = 80 × 10 = 800 cm lace she have to buy .

(ii). 800cm

cost is rupee 2 per cm

800 ÷2=400

she should pay 400 rupees .

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