Question

how many two digit numbers are divisible by 3

Answer 1

12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99
30 two digit numbers are divisible by 3
hope this helps you

Answer 2

Heya!!
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▪How many 2 digit numbers are divisible by 3 ?

➡The sequence formed is :-

12 , 15 , 18............99


↪Here ,
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➡First term a = 12

➡Common difference d = 3

➡An = 99


✔We need to find the number of terms !!


Using the formula for An,

An= a + ( n -1 ) d


99 = 12 + ( n -1 ) 3

87 /3 = n -1

29 = n -1


n = > 30


▪Hence 30 two digit numbers are divisible by 3 !!


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