hi guys please solve this question
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Step-by-step explanation:
As we know that : there are numbers which are start from 10 and end on the 99 are two digits number and we have to find the the numbers between 10 and 99 that r divisible by 3 :
There are 30 two digit numbers which are divisible by such as :
12, 15, 18, 21, 24, ....... 90, 93, 96, 99
Other solution :
12,15,18 .... 99
where, a = 12 , d = 3, Tn = 99
we have to find n = ?
Tn = a+(n-1)d
=> 99 = 12+(n-1)3
=> n-1 = 29
=> n = 30
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