Sequences & Series · Common terms of two arithmetic progressions
Let be the set of first 101 terms of an A.P., whose first term is 1 and the common difference is 5 and let be the set of first 71 terms of an A.P., whose first term is 9 and the common difference is 7. Then the number of elements in , which are divisible by 3, is:
- (1)4
- (2)5
- (3)6
- (4)7
We corrected a printing error in the original paper
Source printed “the number of elements is ”.
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