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P, Q and R can do a piece of work in 10, 20 and 30 days respectively. Total work = 60 (LCM of 10, 20 and 30) P's efficiency = 60/10 = 6 Q's efficiency = 60/20 = 3 R's efficiency = 60/30 = 2 Pattern of work = PQ, PR, PQ, PR... Work done by PQ and PR in 2 days = (6 + 3) + (6 + 2) = 17 2 days => 17 units 2 × 3 = 6 days => 17 × 3 = 51 units remaining 9 units done by PQ in = work/efficiency = 9/(6 + 3) = 1 day Total time taken = 6 + 1 = 7 days ∴ P, Q and R complete the work together when P is assisted by Q and R on every alternate day in 7 days.
Vista
Choose the one which best expresses the meaning of the given word .
Fleeting
In each of the following questions, three out of four words given have the same meaning. Mark the number as your answer which is different in meaning fr...
In the following question, choose the word which is opposite in meaning to the given word.
Shabby
Choose the word opposite in meaning to the given word:
Benevolent
A traditional story sometimes popularly regarded as historical but not authenticated
NCC chief said “If we are not in a position to take a decision, we don’t find any point in drought tourism,”
Match the idioms in List-I with their meanings in List-II:
A person who takes a position of power or importance illegally or by force
Choose the correct synonym for the word "Vast":