71.

A telegraph post is bent at a point above the ground. Its top just touches the ground at a distance of 8√3 from its foot and makes an angle of 30° with the horizontal. The height (in m) of the post is:

• 12

• 16

• 18

• 24

Study the graph and answer the following questions.
The graph shows the number of bicycles parked in the parking space of a hall at various points of time.

Charges for parking is â‚¹ 1 per hour. What will be the total collection from 9 am to 7 pm is:

• ₹ 625/-

• ₹ 635/-

• ₹ 685/-

• ₹ 695/-

Study the graph and answer the following questions.
The graph shows the number of bicycles parked in the parking space of a hall at various points of time.

What is the percentage decrease in the number of parked cycles between 7 pm and 8 pm?(in whole number)

• 30%

• 38%

• 42%

• 45%

Study the graph and answer the following questions.
The graph shows the number of bicycles parked in the parking space of a hall at various points of time.

What is the average number of parked cycles as seen from the graph?

• 40

• 45

• 55

• 60

Study the graph and answer the following questions.
The graph shows the number of bicycles parked in the parking space of a hall at various points of time.

How many times, as mentioned in the graph, is the number of parked cycles above average?

• 3

• 4

• 5

• 6