Others Maths Puzzle

the way a person climbs a stair is given by f(n)=n, where n is the nth step he takes and f(n) defines the number of steps he climbs in the nth step. if the person finishes climbing the staircase in his 4th step, find the total number of steps in the stairs?

Read Solution (Total 1)

4th step 4 stairs, 3rd step 3 stairs ,2nd step 2 stairs ,1st step 1 stair..therefore 10 steps
11 years agoHelpfull: Yes(3) No(0)

Others Other Question

Find out the remainder when 25 raised to 26^27 is divided by 7 There is a group of 4 people who have to cross a long and rickety bridge at night. They have only one torch (which is
required to cross the bridge) and the bridge can carry only 2 people at a time. The times taken by the 4 people to cross
the bridge are 1 minute, 3 minutes, 4 minutes and 7 minutes. (When two people are crossing together, the time taken is
equal to that of the slower one). What is the minimum time required, in minutes, for them all to cross?