Question
An elephant can do a work as fast as two horses
lsquo;Arsquo; and lsquo;Brsquo; can do it by working together. If horse lsquo;Arsquo; alone can complete the work in 24 hours and horse lsquo;Brsquo; in 36 hours, then find the time taken by elephant to complete the work.Solution
Let the total work = 72 units Efficiency of horse who can complete the work in 24 hours = 72/24 = 3 units/hour Efficiency of horse who can complete the work in 36 hours = 72/36 = 2 units/hour Therefore, time taken by both horses to complete the work together = 72/(3 + 2) = 13.2 hours Therefore, time taken by the elephant to complete the work = 13.2hours
Six persons D, E, F, G, H and I sit in a linear row and face in the north direction. G sits at an extreme end of the row. Only two persons sit between G...
__ sits second to the right of ___
Who among the following doesn’t face same direction as T?
I. V
II. U
III. B
Six teachers S, T, U, V, W and X are sitting around a circular table (not necessarily in the same order ). W is third to the left of U. T is on the imm...
- Six persons R, S, T, U, V and W sit in a row and face north direction. W sits immediate left of T. R sits second to the left of S. Three persons sit betwee...
Eight persons J, K, L, M, N, O, P and Q are sitting around a circular table and faces towards the centre. J is sitting third to the right of P and secon...
Six D, E, F, G, H and I are sitting in a row facing north (not necessarily in the same order). Only three person are sitting between G and E. G is not a...
What is the position of E with respect to D?
Which of the following statement is correct?
How many persons are sitting around the circular table?
