Question

Every floor of a 30 story building is 4m high. A lift moves 2 meters per second. How
long will it take to move from 5th floor to 28th floor?​

Answer 1

Answer:

Hey!! Here is your answer....

if the floor height is 4m and the lift moves 2m/s,

then, the lift will cover one floor in = (4÷2)sec

                                                         =2sec

the lift has to cover =(28-5)floors

                               =23 floors

the lift covers 1 floor in 2 sec

so, it will cover 23 floor in =(23×2)sec

                                         =46sec

Hope it helps you.