1.

A digit n > 3 is divisible by 3 but not divisible by 6. Which one of the following is divisible by 4?1. 2n2. 3n3. 2n + 44. 3n + 1

Answer» Correct Answer - Option 4 : 3n + 1

Given:

n is a number where n > 3 and divisible by 3 but not divisible by 6.

Calculation:

Let assume a number which satisfies above condition.

9 is divisible by 3 but not divisible by 6 and greater than 3.

Now, go through options.

Option 1)

⇒ 2 × 9 = 18

Not divisible by 4.

Option 2)

⇒ 3 × 9 = 27

Not divisible by 4.

Option 3)

⇒ 2 × 9 + 4 = 22

Not divisible by 4.

Option 4)

⇒ 3 × 9 + 1 = 28

Divivible by 4.

∴ Option 4) 3n + 1 is divisible by 4.


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