2.3.4.15.12
3.4.5.28.20
4.5.6.45.30
5.6.7.66.42
6.7.8.??.56
Answer Posted / mohammed rafiuddin
15-28=13
28-45=17
45-66=21
66-91=25
the difference between 13,17,21,25 is 4.
therefore it satisfies the condtion.
| Is This Answer Correct ? | 4 Yes | 5 No |
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