Column A Column B a = 2; b = -1 (a + b)² (a - b)²

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

Test Index

Quantitative Comparison Practice Test 3

Question : 7 of 50

Marks: +1, -0

Column A	Column B
$a = 2; b = -1$
$(a + b)^2$	$(a - b)^2$

Solution:

Concept:

Substitute the given values and compare the two squared expressions.

Explanation:

Column A is

(a+b)^2

Substitute

a=2

b=-1

(2+(-1))^2=(1)^2=1

Column B is

(a-b)^2

Substitute

a=2

b=-1

(2-(-1))^2=(3)^2=9

Since

1<9

, Column B is greater.

Answer:

Option B: the quantity in Column B is greater.

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