Column A Column B Area of a semicircle 49\,{m}²

Correct Answer is : if the quantity in Column A is greater;

if the quantity in Column A is greater;

if the quantity in Column B is greater;

if the two quantities are equal;

if the relationship cannot be determined from the information given.

Correct Answer is : if the quantity in Column A is greater;

Test Index

Quantitative Comparison Practice Test 3

Directions (14–16):

Question : 15 of 50

Marks: +1, -0

Column A	Column B
Area of a semicircle	$49\,\mathrm{m}^2$

Solution:

Concept:

Compare the area of a semicircle with the given quantity.

Explanation:

From the figure, the radius is

r = 7 \, \mathrm{m}

Area of a semicircle

= \frac{1}{2} \pi r^2

Substitute

r = 7

and

\pi = \frac{22}{7}

\frac{1}{2} \times \frac{22}{7} \times 7^2 = 77 \, \mathrm{m}^2

So Column A

= 77 \, \mathrm{m}^2

Column B

= 49 \, \mathrm{m}^2

Since

77 > 49

, Column A is greater.

Answer:

Option A

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