Answers

2016-02-23T07:34:34+05:30
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
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