| Question | Select the set of numbers that is similar to the following set of numbers. (25, 144, 47) | |
| Type | multiple_choice | |
| Option | (16,82,23) | incorrect |
| Option | (9,72,8) | incorrect |
| Option | (15,96,340) | incorrect |
| Option | (19,78,20) | correct |
| Solution | Adding outer numbers and multiply by two it makes middle number. 25 + 47 = 72 72 × 2 = 144 19 + 20 = 39 39 × 2 = 78 | |
