Question

Every floor of a 104-storey skyscraper is 4 m high. If a balloon rises 3 m every second, how long will
it take to rise from the 36th floor to the 96th floor?

Answer 1

Answer:

312

Step-by-step explanation:

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Answer 2

Answer:

80 secs (or) 1 min 20 secs

Step-by-step explanation:

No. of floors from 36 to 96 is = 60

each floor is of height = 4m

balloon rising = 3m/s (speed)

Calculation:

1. total height from 36th floor to 96th floor :-

= (no. of floors)( height of each floor)

= (96 - 36)(4)

= 60(4)

= 240 m (distance)

2. total time taken to cross the 96th floor from 36th floor :-

= total height / rising speed

speed = distance / time

time = distance / speed

given:-

speed = 3m/s

distance = 240m

total time = 240 / 3

= 80 seconds

therefore total time taken by the balloon to cross 96th floor from 36th floor is

ans:- 80 secs (or) 1 min 20 secs

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hope it helps you