Question

From the given alternatives, find out the right term which matches the given group.

$123,147,173$

• A. $201$
• B. $225$
• C. $169$
• D. $144$

Answer 1

Answer: (A)

$201$

From the given group, we have

$147-123=24$

$173-147=26$

The difference between the numbers is increasing by $2$ after every element of the sequence.

So the next difference should be $28$

$\Rightarrow x-173=28$

$\Rightarrow x=201$

Hence, the answer is $201$.