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Total work = LCM of 15, 45 and 90 = 90 units Unit per day of A = 90/15 = 6 Unit per day of B = 90/45 = 2 Unit per day of C = 90/90 = 1 Units of work done by A in 3 days = 6 × 3 = 18 units Units of work done by B in 8 days = 8 × 2 = 16 units Remaining work = 90 – (18 + 16) = 56 units So, C has worked for 56/1 = 56 days
There are 5 books N, O, P, Q & R placed on table. If N is placed below R, P is placed above Q, O is placed below N and Q is placed above R, then which o...
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