| Question | Select the number from among the given options that can replace the question mark (?) in the following series. 45, 68, 99, ?, 187, 246, 313 | |
| Type | multiple_choice | |
| Option | 105 | incorrect |
| Option | 166 | incorrect |
| Option | 117 | incorrect |
| Option | 140 | correct |
| Solution | Adding the alternate prime numbers starting from 23 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67. | |
