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8. Three pieces of ropes measuring 0.2 km, 5,005 cm and 1,200 mm respectively are joinedend to end to form a single rope.(a) How long is the new rope?(b) Find the cost of the single rope so formed at the rate of Rs. 15 per metre.

Answer»

1km. Equal to 5 rupees. And 5 km equal to25 rupees per month

rupee=0.2km=20000 cm, 5,005= 5005 CM 1800mm=120 cm, new rupee 20,000+5005+120 cm, 1)the new rupee ii)25.125 cm long 2)rs.15 per meter=251.25 cm rupee 251.25 meter ×15= 3.768.75



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