If a man climbs either one step or two steps at a time, the total number of ways in which he can climb up a staircase of 2n steps (starting from the bottom) is

A flight of stairs has 10 steps.A person can go up the steps one at a time,two at a time,or anycombination of 1s and 2's. Find the total number of ways in which the person can go up the stairs.

If the breaking strength of string is 600N then find out the maximum acceleration of the man with which he can climb up the road

Three girls are climbing down a staircase.One girl climbs down two steps at one go.The second girl three steps at one go and the third climbs down four steps.They started together from the beginning of the staircase leaving their foot marks.They all came down in complete steps an had their foot marks together at the bottom of the staircase.In how many steps would there be only one pair of foot mark?

If N is the number of ways in which a person can walk up a stairway which has 7 steps if he can take 1 or 2 steps up the stairs at a time then the value of N/3 is

If N is the number of ways in which a person can walk up a stairway which has 7 steps if he can take 1 or 2 steps up the stairs at a time then the value of N//3 is _______.

If N is the number of ways in which a person can walk up a stairway which has 7 steps if he can take 1 or 2 steps up the stairs at a time then the value of N//3 is _______.

If N is the number of ways in which a person can walk up a stairway which has 7 steps if he can take 1 or 2 steps up the stairs at a time then the value of N//3 is _______.