Question

How many revolutions should a wheel of radius
140 cm make to cover a rectangular field once of
length 120 m and breadth 100 m?
(ii) A typist uses a sheet measuring 20 cm by 30 cm
lengthwise. If a margin of 2 cm is left on each
side and a 3 cm margin on top and bottom, then
the percentage of page used for typing is​

Answer 1

Answer:

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