Question

How many numbers of two digits are divisible by 7?​

Answer 1

Answer:

13 nos.

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Answer 2

13

Step-by-step explanation:

14,21,28,35,...98 are in A.P

First term=a=14 and common difference=d=21−14=7

and the last term=tn=98

t n=a+(n−1)d

⇒98=14+(n−1)7

⇒98=14+7n−7

⇒7n=98−7

⇒7n=91

⇒n= 91/7 =13

..There are 13 numbers divisible by 7.

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