Question
Tap P can fill the tank in 5 hours and Tap Q can empty
it in 7(1/2) hours. Tap P starts filling and they opened for 1 hour each alternatively. In what time will the tank be full?Solution
2 Hours = 1 work done 
Last work will be done by P Therefore, 15 -3 = 12 
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...The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
Find the wrong number in the given series.
12, 18, 27, 42, 62, 87
