The radius and the height of a cone are each increased by 20%. Then the volume of the cone increases by

• 20%

• 20.5%

• 62%

• 62%

72.

A bar graph showing the heights of six mountain peaks. Study the bar graph and answer the questions.


The average height of all the peaks (in m) is

• 7601.5

• 7600

• 7599.5

• 7599.5

A bar graph showing the heights of six mountain peaks. Study the bar graph and answer the questions.


Which peak is the second highest?

• B

• C

• A

• A

A bar graph showing the heights of six mountain peaks. Study the bar graph and answer the questions.


Write the ratio of the heights of the highest peak and the lowest peak.

• 22 : 15

• 15 : 22

• 20 : 13

• 20 : 13

A bar graph showing the heights of six mountain peaks. Study the bar graph and answer the questions.


When the heights of the given peaks are written in ascending order, what is the average of the middle two peaks?

• 7950 m

• 7560 m

• 7650 m

• 7650 m