Question
Pipe ‘A’ and pipe ‘B’,
together can fill 20% of a tank in 6 hours while pipe ‘C’ takes 35 hours to empty it. Pipe ‘A’ and pipe ‘B’ were opened together. After 28 hours, pipe ‘C’ is also opened. Find the total time taken to fill the empty tank this way.Solution
For an integer n, n!=n.(n-1).(n-2). ... 3.2 .1. Then 1! +2!+3!+...+ 100! when divided by 5 leaves remainder _________.
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94 ...
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In this question, a question is followed by two statements mumbered (I) and (II). You have to decide whether the data provided in the statements are suf...
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