In the following series, two numbers have been placed inside brackets. Study the series carefully and select the correct option regarding the series. 1, 2, 5, 10, (15), 26, 37, 50, (66), 82
Both the numbers placed in brackets are wrong.
Each term is (n² + 1) for n = 0, 1, 2, 3, ...
0² + 1 = 1, 1² + 1 = 2, 2² + 1 = 5, 3² + 1 = 10
Fifth term = 4² + 1 = 17, not 15, so the first bracketed number is wrong.
Then 5² + 1 = 26, 6² + 1 = 37, 7² + 1 = 50
Ninth term = 8² + 1 = 65, not 66, so the second bracketed number is also wrong (9² + 1 = 82 confirms the rule).
Hence, Both the numbers placed in brackets are wrong..
Similar Questions
Select the option that correctly completes the series: 8, 9, 13, 22, 38, ____
Select the option that correctly completes the series: 1330, 728, 342, 124, ____
Select the option that correctly completes the series.
88, 98, 83, 103, 78, ?
Select the option that completes the series.
12, 12, 13, 26, 28, 84, ?
Complete the series by filling in the blank in the correct manner.
15, 45, 70, 90, 105, ?
Select the option that correctly completes the series.
37, 50, 65, 82, 101, ?
Select the option that completes the series.
2, 4, 8, 14, 22, ____
Select the option that completes the series by filling in the blank.
90, 96, 105, 117, 132, _____
Select the option that will complete the series.
33, 45, 69, 105, 153, ____
Select the option that correctly completes the series: 21, 57, 32, 48, 39, ____
Important Questions from Number Series
What will come in place of question mark (?) in the following number series?
2, 5, 11, 23, 44, 77, ?
What will come in place of question mark (?) in the following number series?
31, 32, 36, ?, 61, 86
What will come in the place of question mark (?) in the following number series?
3, 6, 18, ?, 630, 6930
What should come in place of the question mark ‘?’ in the following number series?
60, 40, 50, ?, 180, 460
A series is given with one term wrong. Select that wrong term from the given alternatives.
J12, M24, P48, S96, U192
