3i-Infotech Company Numerical Ability Area and Volume

Q. Two trains start from stations A and B spaced 50 kms apart at the same time and speed.
As the trains start, a bird flies from one train towards the other and on reaching the second train, it flies back to the
first train.This is repeated till the trains collide.
If the speed of the trains is 25 km/h and that of the bird is 100km/h.
How much did the bird travel till the collision.

Read Solution (Total 2)

100 km
50/25+25 =1 h
flies's speed = 100km/h
i.e in 1 h it will travell 100km.
10 years agoHelpfull: Yes(4) No(1)

100 km since both trains collide after 1 hour ..and in one hour bird can cover 100 km...
9 years agoHelpfull: Yes(0) No(0)

3i-Infotech Other Question

Q. The member's names were Abhishek, Amol, Ankur, Anurag,Bhuwan ,Vasu and Vikram. The meetings were chaired by Vikram. On the first evening members sat around the table alphabetically. On the following two nights, Vikram arranged the seatings so that he could have Abhishek as near to him as possible and abesent minded Vasu as far away as he could. On no evening did any person have sitting next to him a person who had previously been his neighbour. How did Vikram manage to seat everybody to the best advantage on the second and third evenings?
1, 2 , 3, 4 digits are available. How many number of 4 digited numbers which are divisible by 4. (There should be no repetition of digits in the numbers) can be formed?