Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Number System (1)

Question:

Find the sum of first five composite numbers and five consecutive prime numbers immediately next to these composite numbers.

Options:

112

117

118

120

Correct Answer:

120

Explanation:

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