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The number of pairs of twin primes between 1 and 100 are:
Question

The number of pairs of twin primes between 1 and 100 are:

A.

10

B.

8

C.

9

D.

7

Correct option is B

Given:

We are to find the number of twin prime pairs between 1 and 100.

Solution:

List all prime numbers between 1 and 100:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Twin prime pairs:

(3, 5)

(5, 7)

(11, 13)

(17, 19)

(29, 31)

(41, 43)

(59, 61)

(71, 73)

Total = 8 pairs

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