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Rate of filling of the first pipe = 1/12 tank per hour. Rate of emptying of the second pipe = 1/18 tank per hour. Net rate = 1/12 - 1/18 = (3 - 2) / 36 = 1/36 tank per hour. Time to fill the tank = 1 / (1/36) = 36 hours. Correct answer: a. 36 hours
Which one of the given mathematical operations will result in 150?
In the given arrangement, how many numbers are between the second symbol from the right end and the third symbol from the left end?
How many pairs of letters are there in the word “FUNCTIONAL” which has as many letters between them in the word as in the English alphabetical serie...
Who lives immediately above N?
Statement:
Few A are B
All A are D
All B are C
Conclusion:
I. Some A are C <...
LZ, MZ, NZ, PZ, QZ, RZ, WZ, and XZ attend a concert and sit around the circular table. They all are facing toward the center of the circular table. PZ...
E is 5m to the north of J. F is 5m to the west of E. C is 5m to the south of F. I is 9m to the east of C. H is 5m to the north of I. K is 12m to the eas...
Silent : Loud :: Dim : ?
In the developing countries, over the past decade, the rate of enrolment and investment in higher education has grown and the demand side pressures will...
Select the set in which the numbers are related in the same way as are the numbers of the given set. (NOTE: Operations should be performed on the whole ...
