Question
How many 7s are there in the following series which are
not immediately followed by 3 but immediately preceded by 8? 898762263269732872778747794Solution
8 9 (8 7) 6 2 2 6 3 2 6 9 7 3 2 (8 7) 2 7 7 (8 7) 2 3 7 7 9 4 Answer is three (option B).
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A can do a work in 12 days and B in 16 days. If they work on it together for 3 days then in how many days the remaining work will be completed by B?
Ratio of the work done by P, Q and R in one day is 6:4:7 respectively. They all together can complete the work in 45 days. Q and R worked on it for 27 d...
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