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Question
How many two-digit numbers are divisible by 3?
Options
25
30
32
36
MCQ
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Solution
30
Explanation:
Two-digit numbers divisible by 3 are 12, 15, 18, ..., 99.
Let Tn = 99.
Then, 12 + (n – 1) × 3 = 99
⇒ (n – 1) × 3 = 87
⇒ n = 30
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