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2 .The capacities of two hemispherical vessels are 6.4 litres and 21.6 litres. The ratio of their inner radii is â€“

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3 .Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours Pipe A is closed, then the other pipe will fill the tank in â€“

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4 .A farmer divides his herd of ncows among his four sons, so that the first son gets onehalf the herd, the second one-fourth, the third son $1\over5$ and the fourth son 7 cows. Then the value of nis â€“

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5 .The least number which when divided by 35, 45, 55 leaves the remainder 18, 28, 38 respectively is â€“

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6 .

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7 .The number of years in which the income exceeds the average income is â€“

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8 .The expe nditure f rom 2012 t o 2013 increased by â€“

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9 .The income in 2012 was equal to the expenditure in the year â€“

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10 .The profit was maximum in the year â€“

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