(i) 30 cows can graze a field in 15 days. How many less/more cows will graze the same field in 10 days?
(ii) At a particular time, the length of the shadow of a building whose height is 80 m is 100 m. What will be the height of an electric pole, the length of whose shadow of the same time is 35 m?
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Answer:
20 cows
55 m
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