Question
Two pipes A and B can fill a tank in 24 min., and 32
min, respectively. If both the pipes are opened simultaneously, after how much time B should be closed so that the tank is full in 18 minutes?Solution
Let B be closed after x minutes. Then, Part filled by (A+B) in x min. + part filled by A in (18 – x) min. = 1 x (1/24 + 1/32) + (18 – x ) × 1/24 = 1 ⟹ 7x/96 + (18 - x)/24 = 1 ⟹7 x + 4 (18 – x) = 96 ∴ x = 8 ∴ Hence, B must be closed after 8 minutes
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
If the expressions G < L ≤ J > B, J ≤ A and G > H are true, which of the following conclusions will be definitely false?
Statements: U = G ≥ T, M < J < H = T, M = A > L
Conclusions:
I. U > M
II. G ≥ A
III. L < T
Statements: E > U > V ≥ K > F; E ≤ N = L < H
Conclusions: I. L > KÂ Â Â Â Â II. U < H
Which of the following symbols should be placed in blank spaces respectively in the same order from left to right in order to complete the given express...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is /are definitely true and t...
Statements: Q > M > Y < N = H ≥ S < V < R ≤ K
Conclusion
I: K > Y
II: N > S
Statement: I ≤ S, S < X, X = F, F ≤ K
Conclusion: I. K > I II. I < X
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
Statements:
J ≥ F = P; F > S ≥ A; S ≥ B < C
Conclusions:
I. C > A
II. B < J
