125, 128, 133, 140, 149,?
The question presents a sequence of numbers: 125, 128, 133, 140, 149, ?. We need to find the logic behind this series to determine the missing number.
Let's examine the difference between consecutive terms in the series:
Observing the differences calculated above (3, 5, 7, 9), we can see a clear pattern. The differences are consecutive odd numbers, increasing by 2 each time.
| Term 1 | Term 2 | Difference |
| 125 | 128 | \(128 - 125 = 3\) |
| 128 | 133 | \(133 - 128 = 5\) |
| 133 | 140 | \(140 - 133 = 7\) |
| 140 | 149 | \(149 - 140 = 9\) |
Following the established pattern of consecutive odd numbers for the differences, the next difference should be the odd number following 9, which is 11.
To find the missing term in the series, we add this next difference (11) to the last known term (149):
Calculation: \(149 + 11 = 160\).
Therefore, the number that should come in place of the question mark (?) is 160.
Select the number from among the given options that can replace the question mark (?) in the following series.
175 221 267 313 359 ?
In the following number pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should replace X and Y so that the pattern followed by the two numbers on the left side of :: is the same as that on the right side of ::?
(Note: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
X : 140.4 :: 38 : Y
Which of the following options should come in place of the question mark (?) in the given series?
75 15 24 34 45?
Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.
(Left) # 1 * £ 5 8 $ 4 2 & % 6 7 & @ 3 2 9 (Right)
How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by a symbol?
Find the next term in the series.
X, V, T, R, P, ?What will be next number in the series?
0, 1, 4, 27, 16, 125, 36, ?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