Question
A train with 16 compartments of equal length takes 32
seconds to cross a pole and 40 seconds to cross a 160-metre-long platform. If 8 compartments are removed, then how long would it take to cross a pole?Solution
Let the original length of the train = ‘d’ metres
Then, distance covered by the train in 32 seconds = ‘d’ metres
Distance covered by the train in 40 seconds = (d + 160) metres
So, distance covered in (40 – 32) = 8 seconds = (d + 160 – d) = 160 metres
So, speed of the train = 160 ÷ 8 = 20 m/s
So, original length of the train = 20 × 32 = 640 metres
After removing 8 compartments, length of the train = 640 × (8/16) = 320 metres
So, required time taken = 320 ÷ 20 = 16 seconds
- 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 then g...
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 the...
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 th...
- 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 gi...
Statements: J ≥ K > L ≥ M < E < F < G
Conclusions: I.  J > M                      II. G > L
...Statements: X ≥ W, W ≤ U, U > T, T < S
Conclusions: I) X > U
II) S > U
III) T < W
Statements:  E = F < G < H; I ≥ J = H; K > I
Conclusions:
I. E > J
II. K = J
III. F < K
Statements: B > D = H > G < J ≤ K > L < I
Conclusion
I: B ≥ G
II: K > G
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 th...
Statements: O > M = Q > S; M ≥ K > A; Q ≤ O < E
Conclusions: Â Â Â Â Â I. O > SÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. K < OÂ Â Â Â Â Â Â Â ...