Question

Every floor of 20 storey building is 3m high if a lift moves 2m every second . How long will it take to move from ground floor to 15 floor.

Answer 1

Answer:

24sec

Step-by-step explanation:

ground floor to 15th floor means 16 storey of all

so 16×3=48 m

now, for going 2m it takes 1sec

for going 1m it takes 1/2 sec

for going 48m it takes 1/2 × 48 = 24sec