Question

A black board is 17 dm 7cm long &11 dm 5cm broad what wil be the cost of painting it at the rate of 35 paise per square cm

Answer 1

SO 1 DM = 10 CM

length=17×10+7

breadth=11×10+5

SO AREA = L×B

177×115

= 20,355

NOW COST = 35 × 20,355 = 712,425

SO CONVERSION = 7124.25 rupees

Answer 2

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