Question

11. A person was climbing on a building. He slips 1 m for every 5 metre he climbs up. If the building 53 m high and he takes 5 seconds to climb 1 metre find the total time taken by him to get on the top of the building
12. Mohit travelled in a bus towards east of a Della by 49 km and then towards west of Delhi by 80 km How far was he from Delhi? 17​

Answer 1

Answer:

1. If the building is 53m high and he takes 5 seconds to climb 1m, find the total time taken by him to get on the top of the building.. it takes him 5*5=25 seconds to climb 5-1=4 meters. It will take him 53/(4/25) = 1325/4 = 331.25 seconds to make the climb.

Answer 2

Answer:

11. 5 minutes 30 sec

12. 93 km

Step-by-step explanation:

11. (5-1)m- 5*5= 25 sec

53/5= 10.6 m slips

53+10.6= 63.6 m climbs

63.6*5 = 318 seconds

318/60= 5 minutes 30 sec