| Question | Select the set in which the numbers are related in the same way as are the number of the following set. {9, 119, 11} | |
| Type | multiple_choice | |
| Option | {7, 71, 8} | correct |
| Option | {5, 40, 7} | incorrect |
| Option | {1, 17, 2} | incorrect |
| Option | {3, 25, 4} | incorrect |
| Solution | Sol. {9, 119, 11} = (11×9) + (11+9) = 99 + 20 = 119 {7, 71, 8} = (7×8) + (7+8) = 56 + 15 = 71 | |
