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Find the sum 40 positive integers which are divisible by 6​

Answer» ONG>Answer:

Expert Answer:

We know that the FIRST 40 positive integers divisible by 6 are 6,12,18,....

This is an AP with a = 6 and d = 6.

S40= 20[2(6) +(40-1)6] =20[12+234] =4920.



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