| Question | Select the number from among the given options that can replace the question mark (?) in the following series. 16, 35, ?, 217, 653, 1309 | |
| Type | multiple_choice | |
| Option | 72 | incorrect |
| Option | 128 | incorrect |
| Option | 77 | incorrect |
| Option | 107 | correct |
| Solution | Pattern: 16×2+3 = 35 35×3+2 = 107 107×2+3 = 217 217×3+2 = 653 653×2+3 = 1309 | |
