Home
Class 7
MATHS
A lift descends into an underground floo...

A lift descends into an underground floor at the rate of 6 meters per minute If the decent starts from 10 meters above the ground level,how much time will it take to descend 350 meters ?

A

30 min

B

50 min

C

1 hour

D

1 hour 30 min

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • FRACTIONS AND DECIMALS

    SRS PUBLICATION|Exercise QUESTION BANK|246 Videos
  • LINES AND ANGLES

    SRS PUBLICATION|Exercise QUESTION BANK|194 Videos

Similar Questions

Explore conceptually related problems

An elevator descends into a mine shaft at the rate of 6 meters per minute. If the descends starts from 10m above the ground level, how long will it take to reach -350m.

A frog is slipping into a well from upper surface at rate of 3 meters per minute, after 5 minutes what is the position of the frog in the well? (Con)

Water is being poured in to the inverted conical vessel at the rate of 1.5 cubic meter per minute. Its depth is always equal to twice its radius. The level of water is rising at the rate of 3//8pi meter oer minute when its depth is

A ball is thrown stright upwards with a speed v from a point h meters above the ground .Find the time taken for the ball to strike the ground.

Air is discharging from a large spherical balloon at the rate of 4 cubic meters per minute. Then, the rate at which the surface area is shrinking when the radius of the balloon is 8 m, is

A ladder of 5 meters long rests against a vertical wall with the lower end on the horizontal ground. . The lower end of the ladder is pulled along the ground away from the wali at the rate 3m/sec. The height of the upper end (in meters) while it is descending at the rate of 4m/sec, is