What is the difference between the sum of twin prime numbers between 10 to 20
and the sum of twin prime numbers between 60 to 80?
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Answer: 84
Step-by-step explanation:
The prime numbers between 10 to 20:
11, 13, 17 and 19
The twin prime numbers between 10 to 20:
(11, 13) and (17, 19)
The prime numbers between 60 to 80:
61, 67, 71, 73 and 79
The twin prime numbers between 60 to 80:
(71, 73)
∴The difference between the sum of twin prime numbers between 10 to 20
The sum of twin prime numbers between 60 to 80:
= (71 + 73) - ( 11 + 13) - (17 - 19)
= 144 - 24 - 36
= 144 - 60
= 84
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