# Arithmetic Progressions

#### Question 13:

How many three digit numbers are divisible by 7

#### Answer:

First three-digit number that is divisible by 7 = 105

Next number = 105 + 7 = 112

Therefore, 105, 112, 119, …

All are three digit numbers which are divisible by 7 and thus, all these are terms of an A.P. having first term...

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