Find the sum of first five composite numbers and five consecutive prime numbers immediately next to these composite numbers.
Answer & explanation
Correct answer: option 4
Composite number are those numbers which are multiple divisors.
So, First 5 composite numbers are 4 , 6 , 8, 9, 10
5 prime numbers next to these composite numbers = 11, 13, 17, 19, 23
Now, Sum of first five composite numbers and five consecutive prime numbers immediately next to these composite numbers
= ( 4 + 6 + 8 + 9 + 10 ) + ( 11 + 13 + 17 + 19 + 23 )
= 120
The correct answer is Option (4) → 120