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SSCCGL Quantitative Aptitude Solved Question Paper 2016

Multiple Choice Questions

71.
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%

62%

Volume of cone $equals space πr squared straight h$
As radius is (r)²
Percentage increase in radius:
$equals space 20 space plus space 20 space plus space fraction numerator 20 space cross times space 20 over denominator 100 end fraction space equals space 40 space plus space 4 space equals space 44 percent sign$
Height is h which is 20% increase
Now,
Net percentage change in volume of cone
$equals space 44 space plus space 20 space plus space fraction numerator 44 space cross times space 20 over denominator 100 end fraction equals space 64 space plus space 8.8 space equals space 72.8 percent sign$

126 Views

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

47 Views

73.

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

Which peak is the second highest?

78 Views

74.

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

59 Views

75.

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?