Question
Pipes ‘A’ and ‘B’ can fill a tank in 9 hours and
12 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 (3/5) the part of the same tank.Solution
Let the capacity of the tank = 36 liters (lcm of 9 and 12) Efficiency of pipe ‘A’ = (36/9) = 4 liters/hour Efficiency of pipe ‘B’ = (36/12) = 3 liters/hour Efficiency of all the three pipes together = (36/9) = 4 liters/hour Efficiency of pipe ‘C’ = 4 – (4 + 3) = (-3) liter/hour {Negative sign shows that pipe ‘C’ is an outlet pipe} Required time taken = {(3/5) × 36)}/3 = 7.2 hours
In the question, relationship between some elements is shown in the statements (s). These statements are followed by two conclusions. Read the statemen...
Statement: A > B = E < F > H; I ≤ D < C; H > G > C
Conclusions:
I. F > I
II. I < G
III. B < G
Statements: M * T, D % T, D # K, K $ R
Conclusions: I. M * DÂ Â Â Â Â II. T # KÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II...
Statements: T > V > Q > S; L > S > V ≥ O ≤ X < Y
Conclusions:
I. T > L
II. V ≥ Y
III. T > OÂ
Statements: K = L ≥ Q; P < R ≤ S = Q; T = U ≤ P
Conclusions:
I. K > R
II. T < QStatements: B ≥ U > P = E ≥ X; X > K > N ≥ J
Conclusions: I. N < P   II. J ≤ X
Statement: C < D ≤ E; F > E ≤ G ; D ≥ H
Conclusions: I. G = H II. G > H
...Statements:
M > N = W; J < P = N; Y > P
Conclusions:
I. Y > W
II. M < Y
III. J > M
Statements: H = G ≥ F, F > A ≥ B > C, C > D > E = J
Conclusions:
I. C < H
II. A > J
III. H ≥ E
Statements: M ≤ N > O; P > M; Q < R < P
Conclusions:
I. M < P
II. O < P
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