A man has some hens and some cows. If the total number of heads of hens and cows together is 50 and the nunber of feet of hens and cows together is 142, then the number of cows is
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If 3P/7 = 4Q/11, then what is the ratio of P and Q respectively?
Red Data Book provides an account of
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During their rule the British persuaded or forced cultivators in Madras to grow __________.
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