Lessons

General Aptitude
9.1 Numbers - General Questions

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Q.

How many 3-digit numbers are completely divisible 6 ?

View Answer

Correct choice: B

Explanation:

3-digit number divisible by 6 are: 102, 108, 114,... , 996

This is an A.P. in which a = 102, d = 6 and l = 996

Let the number of terms be n. Then tn = 996.

a + (n - 1)d = 996

⇒ 102 + (n - 1) x 6 = 996

⇒ 6 x (n - 1) = 894

⇒ (n - 1) = 149

n = 150

∴ Number of terms = 150

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