TCS Company

An escalqtor is moving downwards . X takes 40 steps to reach bottom from top and Y takes 60 steps to reach top from bottom . The speeds of X and Y are equal . What is number of steps on the escalator from bottom to the top....?

Read Solution (Total 8)

TCS Other Question

Find the sum of 1*1!+2*2!+......2012*2012!
please solve it
1*1!+2*2!+3*3!...2012*2012!? How to solve this type of series?