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| Q.6 | Three of the following four triads are alike in a certain way as they are formed by performing same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group? | |
| Ans | 1. 9 : 17 : 81 | |
| 2. 7 : 15 : 49 | ||
| 3. 2 : 3 : 4 | ||
| 4. 11 : 21 : 121 |
Correct Ans Provided: 2
