How many revolutions should a wheel of radius140 cm make to cover a rectangular field once oflength 120 m and breadth 100 m?(ii) A typist uses a sheet measuring 20 cm by 30 cmlengthwise. If a margin of 2 cm is left on eachside and a 3 cm margin on top and bottom, thenthe percentage of page used for typing is

How many revolutions should a wheel of radius140 cm make to cover a re

1.	How many revolutions should a wheel of radius140 cm make to cover a rectangular field once oflength 120 m and breadth 100 m?(ii) A typist uses a sheet measuring 20 cm by 30 cmlengthwise. If a margin of 2 cm is left on eachside and a 3 cm margin on top and bottom, thenthe percentage of page used for typing is
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