Question

Subtract the sun of all prime numbers between 10 and 20 from the sum of all composite numbers between 10 and 20

Answer 1

Answer:

45

Step-by-step explanation:

Prime numbers from 11 to 20 -: ( 11 , 13 , 17 , 19 )

Sum of Prime numbers from 11 to 20 -:

11 + 13 + 17 + 19 = 60

Composite numbers from 11 to 20 -:. ( 12 , 14 , 15 , 16 , 18 , 20 )

Sum of Prime numbers from 11 to 20 -:

10 + 12 + 14 + 15 + 16 + 18 + 20 = 105

• 105 - 60 = 45