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Let the speed one train be x m/s and the speed of the second train be y m/s. Length of the first train = Speed × Time = 30x Length of second train = Speed × Time = 20y So, {(30x + 20y)/(x+y)} = 24 ⇒ 30x + 20y = 24x + 24y ⇒ 6x = 4y Therefore, x:y = 2:3
Six persons (U, V, W, X, Y and Z) sit around a circular table facing towards the center but not necessarily in the same order. W sits immediate right o...
Which of the following is correct?
I) P Visit Delhi
II) The one who visit Mumbai sits third to the left of S
III) U sits ...
Which of the following Cities does K like?
I, J, K, L and M are sitting on a bench all are facing towards the north. I sits next to J; K sits next to L. M sits at the extreme left end. K sits on ...
If D and F exchange their position then after the new rearrangement what is the position of A with respect to F?
Who is paternal grandfather of M?
How many persons face north direction?
J, K, L, M and N are five friends sitting around a circular table facing away from the centre. L is sitting immediate left of N. L is not an immediate n...
Seven persons M, N, O, P, Q, R, and S have different heights. H is taller than P. N is taller than M, who is just shorter than P. R is shorter than S. O...
what is the position of F with respect to his daughter?
