subtract the sum of all prime numbers between 10 and 20 from the sum of all composite numbers between 10and20
a.40
b.45
c.50
d.55
a.40
b.45
c.50
d.55
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A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers
prime numbers between 10 - 20
11 + 13 + 17 + 19 = 60
A composite number is a positive integer that can be formed by multiplying two smaller positive integers
composite numbers between 10 - 20
10 + 12 + 14 + 15 + 16 + 18 + 20 = 105
105 - 60 = 45