1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# A multistory building has 25 floors above the ground level each of the height 5 m. It also has 3 floors in the basement each of height 5 m. A lift in the building moves at the rate of 3 m/sec. If a man starts from 50 m above the ground, how much time will it take to reach 2nd floor of the basement?

A
12 m/sec
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
24 m/sec
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
C
36 m/sec
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
39 m/sec
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is C 36 m/secThe height of each floor is 5 m. Floor at which he is standing = 50m5m=10 So, total floor covered by lift = 10 + 2 = 12 So, time required to reach at 2nd floor of the basement = 12 × 3 m\sec = 36 m/sec.

Suggest Corrections
4
Join BYJU'S Learning Program
Related Videos
12 hours and 24 Hours Fromat
MATHEMATICS
Watch in App
Join BYJU'S Learning Program