pls ans dis ques A man has to take 9 steps. he can move in 4 directions left, right, forward, backward. 1. in how many ways he can move 9 steps?? 2. in how many ways he can move 9 steps such that he has to take steps in all d ...
Dear aspirants, The First Part-Test starts today & will continue till 9th December. You can take this test anytime during this period. The Link for taking this test will be put up on your homepage very shortly, keep looking a ...
