Which of the following numbers will replace the question mark (?) in the given series? 17, ?, 35, 53, 77, 107
23
Find the missing number: 6 : 42 :: 9 : ?
Find the missing number.
24, 35, 46, 57, ?, 79
Find the missing number: 5 : 180 :: 6 : ?
Observe the following table and determine the missing number in the last cell:
| A | B | C | D | Result |
| 5 | 2 | 3 | 10 | 40 |
| 4 | 3 | 5 | 8 | 40 |
| 6 | 4 | 2 | 12 | ? |
What will come in the place of ‘?’ in the following equation, if ‘÷’ and ‘–‘ are interchanged and ‘×’ and ‘+’ are interchanged?
37 ÷ 56 – 7 × 2 + 6 = ?
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘-’ are interchanged and ‘x’ and ‘÷’ are interchanged?
1064 x 2 - 653 ÷ 2 + 89 = ?
Select the number from among the given options that can replace the question mark (?) in the following series.
300, 152, 80, 48, 40, 52, ?
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged?
1205 × 5 + 35 – 197 ÷ 18 = ?
Select the number from among the given options that can replace the question mark (?) in the following series.
625, 382, 301, 274, 265, ?
Select the number from among the given options that can replace the question mark (?) in the following series.
389, 420, 457, 498, 541, ?
Select the number that can replace the question mark (?) in the following pattern.
5 | 6 | 7 | 8 | 9 |
115 | 206 | ? | 502 | 719 |
What function does the public key serve in digital signature verification?
Which of the following is an example of multi-factor authentication for PC security?
Find the missing term in the following question:

What number will come in place of question mark in this series?
100, 115, ?, 150, 170, 185
A. 135
B. 130
C. 140
D. 145