But $$ n $$ should be a positive integer (Why?). So, 301 is not a ter numbers. Dample 7 : How many two-digit numbers are divisible by 3 ? Solution : The list of two-digit numbers divisible by 3 is: $$ 12,15,18, \ldots, 99 $$ Is this an AP? Yes it is. Here, $$ a=12, d=3, a_{n}=99 $$.

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Turner Rose · Accepted Answer

$$ n $$ must be a positive integer because it represents the position of a term in an arithmetic progression. In the example, there are 30 two-digit numbers divisible by 3.

But \( n \) should be a positive integer (Why?). So, 301 is not a ter numbers. Dample 7 : How many two-digit numbers are divisible by 3 ? Solution : The list of two-digit numbers divisible by 3 is: \[ 12,15,18, \ldots, 99 \] Is this an AP? Yes it is. Here, \( a=12, d=3, a_{n}=99 \).

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But \( n \) should be a positive integer (Why?). So, 301 is not a ter numbers. Dample 7 : How many two-digit numbers are divisible by 3 ? Solution : The list of two-digit numbers divisible by 3 is: \[ 12,15,18, \ldots, 99 \] Is this an AP? Yes it is. Here, \( a=12, d=3, a_{n}=99 \).

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