Question

a building has 50 floors every floor of the building is 6 metre high if its elevator moves 3 metre per second then how long will it take to move from second to 42 floor​

Answer 1

Answer:

84

Step-by-step explanation:

6×42 = 252

252 divided by 3 is 84

Answer 2

Step-by-step explanation:

height of one floor=6m

Elevator cover 3m in one second

so,elevator takes 2 second to cross one floor

floors between 2 and 42 is 40

so,40 is multiplied by 2

Elevator takes 80 seconds or 1 min 20 second