Select the numbers from among the given options that can replace the question marks (?) in the following series.
6,7,16,41,?,?,292
- A90, 171
- B95, 180
- C100, 220
- D115, 240
Solution & Step-by-step Explanation
Let's find the differences between consecutive terms:
7−6=1=1
2
16−7=9=3
2
41−16=25=5
2
The differences are squares of consecutive odd numbers (1
2
,3
2
,5
2
).
Following this pattern, the next differences should be 7
2
and 9
2
:
First missing term =41+7
2
=41+49=90
Second missing term =90+9
2
=90+81=171
Let's check the final term to verify:
171+11
2
=171+121=292
The pattern is verified, and the numbers are 90 and 171.
7−6=1=1
2
16−7=9=3
2
41−16=25=5
2
The differences are squares of consecutive odd numbers (1
2
,3
2
,5
2
).
Following this pattern, the next differences should be 7
2
and 9
2
:
First missing term =41+7
2
=41+49=90
Second missing term =90+9
2
=90+81=171
Let's check the final term to verify:
171+11
2
=171+121=292
The pattern is verified, and the numbers are 90 and 171.