Question
Speed of a boat in still water to speed of boat in
upstream is 8: 7. If the boat can travel 450 km in downstream in 10 hours, then find the time taken by the boat to cover 34 km in still water.Solution
Let speed of boat in still water and speed of boat in upstream be ‘8x’ km/h and ‘7x’ km/h, respectively. Speed of stream = 8x – 7x = x km/h Speed of boat in downstream = 8x + x = 9x km/h So, 9x = 450/10 => x = 5 Speed of boat in still water = 8 × 5 = 40 km/h Desired time = 34/40 x 60 = 51 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