Question

Find the sum of all the natural nos. between 650 and 1000, which are dívi​

Answer 1

Answer:

Solution. Clearly, the numbers between 250 and 1000 which are divisible by 3 are 252, 255, 258, …., 999. This is an A.P. with first term a = 252, common difference = 3 and last term = 999.

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