Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number result(s) in the second number. Similarly, certain mathematical operation(s) on the second number result(s) in the third number and so on. Which of the given options follows the same set of operations as in the given sets? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
18 – 36 – 72 – 107
15 – 30 – 60– 95
22 – 44 – 88 – 123
The operation is 18 – 36 – 72 – 107
18 * 2 = 36 * 2 = 72 + 35 = 107
Similarly,
22 * 2 = 44 * 2 = 88 + 35 = 123. and other doesn't follow the same rule. So, this is the correct answer.
Select the number from among the given options that can replace the question mark (?) in the following series.
240, 120, ?, 180, 360, 900
Select the number from among the given options that can replace the question mark (?) in the following series.
37, 52, 74, 104, 143, ?
Which of the following numbers will replace the question mark (?) in the given series?
31, ?, 40, 49, 61, 76
Which of the following numbers will replace the question mark (?) in the given series
12.8, 13.5, 14.9, 17, ?
Which number will replace the question mark (?) in the following series?
1, 4, 13, 40, ?, 364
Which of the following numbers will replace the question mark (?) in the given series?
57, 69, 88, 112, 150, 186, 243, ?
Which number will replace the question mark (?) in the following series?
12, 25, 51, 103, ?, 415, 831
Which of the following numbers will replace the question mark (?) in the given series?
25, 15, ?, −5, −15
In the following question, select the missing number from the given series.
67, 46, 24, 1, –23, ?
Which of the following numbers will replace the question mark (?) in the given series?
82, 79, 71, ?, 60, 57, 49
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