Question

in a building there are 6 floors ground 1st 2nd 3rd and 4th and 5th Mr Narang is at ground floor and wants to go to 4th floor the lift not working properly every time the lift moves. It goes up 2 floor and comes down 1 floor in how many attempts will Mr Narang reach the 4th floor

Answer 1

Given:

Total number of floors= 6

Mr Narang is at ground floor ---> goes up 2 floor and comes down 1 floor

To find:

Number of attempts that Mr Narang will take to reach the 4th floor

Solution:

Relative movement of Mr. Narang= Number of floors that he goes up-Number of floors that he comes down = 1

So, in every attempt he goes up one floor

Therefore, a total of 4 attempts are required to reach the 4th floor.

Number of attempts that Mr Narang will take to reach the 4th floor is 4.