Question

21. A road, 4 km long, has to be covered with 1642 2/5kg
of gravel. Find how much gravel will be used over 1km of road.​

Answer 1

Answer:

The Length of the road = 4km

Weight of gravel used = 1642 2/5kg

                                     = 8212/2kg

Weight of gravel used for 1 km of road = 4/ 8212/2

                                                                = 4 X 2/8212

                                                                = 2/2053kg

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