Question
A cistern has a leak that can empty it in 12 hours. A
tap is turned on, which fills water at the rate of 15 liters per hour. Now, the cistern gets emptied in 20 hours. What is the capacity of the cistern?Solution
Let the capacity of the cistern be x liters. Leak empties x liters in 12 hours: Rate = x/12 liters/hour Tap fills at 15 liters/hour. Net rate = (x/12 - 15) liters/hour Time to empty = x / (x/12 - 15) = 20 hours 1 / (1/12 - 15/x) = 20 1/12 - 15/x = 1/20 Solve: x = 450 liters Correct answer: c) 450 liters
Which of the following would be the THIRD statement after rearrangement?
In the question given below, each passage consist of 6 sentences. The first and the 6th sentences are marked. The middle 4 sentences in each have been...
Given below are four jumbled sentences. Select the option that gives their correct order. Â
A. The mountaineers set up a camp at a height of 150...
Select the option that arranges sentences B, C, D and E in a logical sequence.
Sentences A and F are static.
A. I taught a class at a tele...
Given below are four jumbled sentences. Select the option that gives their correct order. Â
A. Far below he saw green meadows and in their midst...
Which is the LAST sentence of the paragraph?
Given below are four jumbled sentences .Select the option that gives their correct order forming a meaningful and coherent paragraph.
A-Mumba Dev...
In the questions given below, a sentence has been broken down into four fragments labelled (A), (B), (C) and (D) and arranged, not necessarily in the c...
Rearrange the parts in correct order to make a meaningful sentence.
A. to the nearby jungle
B. I saw a young shepherd
C. in ...
1. The shark was trained
P. existed between it
Q. to believe a barrier
R. so the bait fish swam
S. and the bait fis...
