1.

How many terms are identical in the two arithmetic progressions 2,4,6,8,.....up to 100 terms and 3,6,9,.....up to 80 terms?

Answer»

The answer is 33. Do let me know if I am wrong or if you don't UNDERSTAND anything.
just remember. the terms that are common ALSO FORM an AP(ALWAYS, if they are in AP)



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