1.

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

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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.


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