Question
Two pipes, A and B, can independently fill the tank in
24 minutes and 30 minutes respectively, while pipe C can empty 9 gallons from the tank in 3 minutes. If all three pipes are operated simultaneously, and they manage to fill the tank in 20 minutes, what is the tank's capacity?Solution
Taking LCM of 24, 30 and 20 = 120 Efficiency of A = 5 Efficiency of B = 4 Efficiency of (A+B-C) = 6 Efficiency of C = (5 + 4) – 6 = -3 Pipe C empty the tank in = 120/3 = 40 min Capacity of the tank = 40 × (9/3) = 120 gallons
If ‘ Q & R @ S # T & P % U ’ is true, then which of the following is definitely true?
Which of the following statement is correct?
I. P is father of B
II. L is father-in-law of P
III. T is son of U
In a certain code language,
A + B means 'A is the brother of B'.
A - B means 'A is the father of B'.
A X B means 'A is the m...
If A # B means A is brother of B, A $ B means A is husband of B, A % B means A is mother of B, A @ B means A is daughter of B, then which of the followi...
How is U related to S if ‘R+S@T$W#U? V’ is true?
Answer the following question based on the direction given below.
If 'A#B' means 'A is father of B'
'A&B' means 'A is wife of B'
...If ‘A@C’ means ‘A is the wife of K’. ‘A%C’ means ‘A is the brother of K’. ‘A*C’ means ‘A is the son of K’. ‘A#C’ means ‘A...
If (A # B) means A is son of B, (A & B) means A is mother of B, (A @ B) means A is father of B, (A $ B) means A is sister of B. If F # G $ H @ I & J $ K...
( A $ B ) means A is father of B, ( A % B ) means A is brother of B, ( A @ B ) means A is wife of B. If K @ I $ J % G @ H $ F , then, which of the follo...
If F$G@E*D is true, the how is D related to son of G?
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