Question

142,? 84,43,67,25in triangle​

Answer 1

Answer:

Pick 2/3 terms to test the rule. That means if you have, say 5 given terms, at least pick three of them to test the rule that you want to predict.

While choosing the terms to test, select the terms that are the easiest to work with. These include terms that a factor of 2, 3, 5 or 10. Test for common rules like sum of the terms, squares, cubes and other formulae.