Question
‘A’ alone can complete a work in 12 days. ‘B’
alone can complete the same work in 24 days. If ‘A’ and ‘B’ work together for 4 days, then the remaining work can be completed by ‘A’ alone in how many days?Solution
Let the total amount of work = 24 units {LCM of 12 and 24} Then, efficiency of ‘A’ = 24/12 = 2 units/day Efficiency of ‘B’ = 24/24 = 1 units/day Combined efficiency of ‘A’ and ‘B’ = 2 + 1 = 3 units/day Work completed by ‘A’ and ‘B’ together in 4 days = 3 × 4 = 12 units Remaining work = 24 – 12 = 12 units Time taken by ‘A’ alone to complete the remaining work = 12/2 = 6 days
Which of the following is the first sentence after rearrangement of the given paragraph?
Which should be the second sentence after rearrangement?
In Each question below has a sentence with five highlighted words that are jumbled. You need to rearrange them in the correct order to make a coherent s...
Which of the following should be the SECOND sentence after the rearrangement?
1. I had remembered it.
P. Initially after the Liberation I was absolutely not interested in all that stored stuff, and naturally I was also r...
In each question below, a sentence is given with an idiom/phrase printed in bold type. That part may contain a grammatical error. Each sentence is follo...
In the questions given below, a sentence has been divided into four fragments (A), (B), (C) and (D) and is arranged (not necessarily in the correct ord...
In India, the latter ceremony developed (A) its origins to the early 1950s when Major Roberts of the Indian Army traces (B) a unique ...
The most longer (A) element of the Court’s judgment was its proposition (B) that caste, and the ___________ (C) to right historical wrongs, is no cont...
Water and steam(P)/ It used(Q)/to mechanise production(R)/ power(S).
