[CBSE 2013)21. How many natural numbers are therebetween 200 and 500, – InterviewSolution

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1.	[CBSE 2013)21. How many natural numbers are therebetween 200 and 500, which are divisibleICBSE 2011]22. Find the number of three digit naturalisible by 7?by T?
Answer» Im the interval 200 to 500,203 is the smallest number divisible by 7. 497 is the largest number divisible by 7. a=203 d=7 tn=497 tn=a+(n-1)d 497 =203 +(n-1)7 294=(n-1)742=n-1 n=43 So there are 43 numbers divisible by 7.

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