22. How many two digits numbers are divisible by 3.?
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There are 30 two digits divisible by 3.
Explanation:
The multiples of 3 is 3, 6, 9, 12, 15, 18, 21, 24, 27, 30.....99.
The lowest 2 - digit number is 12.
The highest 2 - digit number is 99.
We know that arithmetic progression(A.P) formula for finding the nth term as aₙ = a + (n - 1)d
where aₙ = highest number, a = lowest number, d = difference (3)
99 = 12 + (n - 1) x 3
99 - 12 = 3n - 3
87 + 3 = 3n
90 = 3n
n = 30.
Therefore, there are 30 two digits divisible by 3.
To know more:
how many two-digit numbers are divisible by 3 - Brainly.in
https://brainly.in/question/1873892
How many two digit numbers are divisible by 3 ? - Brainly.in
https://brainly.in/question/2251697
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