If A is the 5th prime number and B is the 7th prime number, then what is B - A?

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Solution

The correct option is C 6
The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.

The 5th prime number is 11 and the 7th prime number is 17.

So, A = 11 and B = 17.

$\Rightarrow$ B - A = 17 - 11 = 6

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If A is the 5th prime number and B is the 7th prime number, then what is B - A?

The correct option is C 6The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29. The 5th prime number is 11 and the 7th prime number is 17. So, A = 11 and B = 17. ⇒ B - A = 17 - 11 = 6

The correct option is C 6
The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.

The 5th prime number is 11 and the 7th prime number is 17.

So, A = 11 and B = 17.

$\Rightarrow$ B - A = 17 - 11 = 6