Question
Find the average of first 27 whole
numbers.Solution
First 13 whole numbers = 0, 1, 2, …….., 25, 26 Average = (1st term + last term)/2 = (0 + 26)/2 = 13
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Pipe ‘X’ and pipe ‘Y’ can fill a tank in 30 hours and 45 hours respectively. Pipe ‘Z’ is 20% more efficient than pipe ‘X’. If pipe ‘Y�...
Pipe L can fill a pool in 30 hours and pipe M in 45 hours. If both the pipes are opened in an empty pool, how much time will they take to fill it?
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