Question
Pipes ‘A’ and ‘B’ can fill a tank in 6 hours and
9 hours, respectively. If pipe ‘C’ is opened along with pipes ‘A’ and ‘B’, then the tank gets filled in 9 hours. Find the time taken by pipe ‘C’ to empty (3/4)th part of the same tank.Solution
Let capacity of the tank = 18 litres (lcm of 6 and 9) Efficiency of pipe ‘A’ = (18/6) = 3 litres/hour Efficiency of pipe ‘B’ = (18/9) = 2 litres/hour Efficiency of all the three pipes together = (18/9) = 2 litres/hour Efficiency of pipe ‘C’ = 2 – (3 + 2) = (-3) litre/hour {Negative sign shows that pipe ‘C’ is an outlet pipe} Required time taken = {(3/4) × 18)}/3 = 4.5 hours
Traders bet on stock price particular (A) without incurring (B) a real transaction to take physical ownership (C) of a movements (D) stock as is done in...
A New Zealand-led stillbirth(A) study published today provides(B) the strongest evidence(C) yet that women can more than hal...
Direction : In each of the following questions a grammatically correct and meaningful sentence is given with four words given in bold in each. Which of...
- In each of the following questions a grammatically correct and meaningful sentence is given with four words given in bold in each. Which of the following w...
In the following question, four words have been given out of which one word is incorrectly spelt. Select the incorrectly spelt word.
In the sentence, certain words are in bold and numbered from A to E, which are the possible pairs to be interchanged. Choose the pair(s) of words which...
On each occasion, they had agreed to uneasy power-sharing arrangements with the army, only for the army to subsequently engineer their unceremonious do...
with utmost confidentiality and speed(A) , the court said such measures undisputedly are required(B) to be taken(C), on hasty decision (D).
...- In each of the questions given below, four words are given in bold. These four words may or may not be in their correct position. The sentence is then foll...
Two sentences are given below, with three words emboldened in each of them. Interchange the words between two sentences to form a grammatically and con...
Relevant for Exams:
