Question

Write five pairs of prime numbers less than 20 whose sum is divisible by 5.

Answer 1

Answer:

1)2+3=5

2)2+13=15

3)7+13=20

4)3+17=20

5)11+19=30.

 

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Answer 2

Answer:

the five pairs of primary number are

2+3=5; 7+13=20; 3+17=20; 2+13=15; 5+5=10