| Question | Select the number from among the given options that can replace the question mark (?) in the following series. 68, 3, 63, 3, 57, 9, 50, 15, 42, 33, 33, ? | |
| Type | multiple_choice | |
| Option | 63 | correct |
| Option | 66 | incorrect |
| Option | 33 | incorrect |
| Option | 36 | incorrect |
| Solution | 68 – 5 = 63 63 – 6 = 57 57 – 7 = 50 50 – 8 = 42 42 – 9 = 33 Now, 3 × 2 – 3 = 3 3 × 2 + 3 = 9 9 × 2 – 3 = 15 15 × 2 + 3 = 33 33 × 2 – 3 = 63 68, 3, 63, 3, 57, 9, 50, 15, 42, 33, 33, 63. | |
