Question
‘A’ alone can complete a work in 10 days. ‘B’
alone can complete the same work in 15 days. If ‘A’ and ‘B’ work together for 3 days, then the remaining work can be completed by ‘A’ alone in how many days?Solution
Let the total amount of work = 30 units {LCM of 10 and 15} Then, efficiency of ‘A’ = 30/10 = 3 units/day Efficiency of ‘B’ = 30/15 = 2 units/day Combined efficiency of ‘A’ and ‘B’ = 3 + 2 = 6 units/day Work completed by ‘A’ and ‘B’ together in 3 days = 5 × 3 = 15 units Remaining work = 30 – 15 = 15 units Time taken by ‘A’ alone to complete the remaining work = 15/3 = 5 days
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Statement: X > Y > Z; A > C > X; A < D
Conclusion: I. Z < AÂ Â Â Â Â Â II. C > Y
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is/are definitely true and then...
Statements: M $ K; K & N, N % R, R @ W
Conclusions:Â Â Â Â Â
I. W & KÂ Â Â Â Â Â Â Â Â Â Â Â Â Â
II. K & W         �...
Statement: JÂ `>=` I > PÂ `<=` QÂ
   Conclusion: I. P < J                     II. Q `>=` J
...Statements: J > K > L, L < M > X, X = Y > Z
Conclusion:
I. L = Z
II. J > Y
Which of the following expressions will be true if the given expression ′S > T ≥ U < V < W′ is definitely true?
Statement: Q > P; R > S > O; R < P
Conclusion:
I.Q > O
II. Q > S
Statement: H > G = M > S ; GÂ `>=` Â T > L; MÂ `<=` Â F <Â U
    Conclusion:  I. L > M          II. G < U
...In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
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