Question

A road roller makes 200 rotations in covering 2200 m.
Find the radius of the roller.
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Answer 1

Answer:

Radius of the roller :- 1.75

explanation:

Roller make 200 rotation to cover a distance = 2200m

2×22/7×r ×200 = 2200

r = 2200×1/2×7/22×1/200

r= 1100×1/200×7/22

r= 11/2×7/22

r= 7/4 = 1.75