Prime Based MCQ Quiz - Objective Question with Answer for Prime Based - Download Free PDF

Last updated on May 20, 2025

Latest Prime Based MCQ Objective Questions

Prime Based Question 1:

Find the average of the prime numbers lying between 68 and 91.

  1. 76
  2. 77
  3. 78
  4. 79

Answer (Detailed Solution Below)

Option 4 : 79

Prime Based Question 1 Detailed Solution

Given:

Prime numbers lying between 68 and 91.

Formula Used:

Average of prime numbers = Sum of prime numbers / Number of prime numbers

Calculation:

Prime numbers between 68 and 91: 71, 73, 79, 83, 89

Sum of these prime numbers = 71 + 73 + 79 + 83 + 89

⇒ Sum = 395

Number of prime numbers = 5

Average = 395 / 5

⇒ Average = 79

The average of the prime numbers lying between 68 and 91 is 79.

Prime Based Question 2:

Find the average of the prime numbers lying between 50 and 76.

  1. 66
  2. 60
  3. 62
  4. 64

Answer (Detailed Solution Below)

Option 4 : 64

Prime Based Question 2 Detailed Solution

Given:

We need to find the average of the prime numbers lying between 50 and 76.

Formula Used:

Average of prime numbers = Sum of prime numbers / Number of prime numbers

Calculation:

Prime numbers between 50 and 76 are 53, 59, 61, 67, 71, 73.

Sum of prime numbers = 53 + 59 + 61 + 67 + 71 + 73

Sum of prime numbers = 384

Number of prime numbers = 6

Average of prime numbers = Sum of prime numbers / Number of prime numbers

⇒ Average of prime numbers = 384 / 6

⇒ Average of prime numbers = 64

The average of the prime numbers lying between 50 and 76 is 64.

Prime Based Question 3:

The average of all prime numbers between 32 and 69 is:

  1. 52.5
  2. 60
  3. 51
  4. 56.5

Answer (Detailed Solution Below)

Option 3 : 51

Prime Based Question 3 Detailed Solution

Given:

The range = between 32 to 69

Formula used:

\(Average={Sum\ of\ all\ the\ items\over The\ total\ number\ of\ items}\)

Calculation:

Let the average of all the numbers be X

The prime numbers between 32 and 69 = 37, 41, 43, 47, 53, 59, 61, 67

The sum of all prime numbers = 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 = 408

The total numbers = 8

The average of the numbers = X = \({408\over8}=51\)

∴ The required result will be 51.

Top Prime Based MCQ Objective Questions

Prime Based Question 4:

The average of all prime numbers between 32 and 69 is:

  1. 52.5
  2. 60
  3. 51
  4. 56.5

Answer (Detailed Solution Below)

Option 3 : 51

Prime Based Question 4 Detailed Solution

Given:

The range = between 32 to 69

Formula used:

\(Average={Sum\ of\ all\ the\ items\over The\ total\ number\ of\ items}\)

Calculation:

Let the average of all the numbers be X

The prime numbers between 32 and 69 = 37, 41, 43, 47, 53, 59, 61, 67

The sum of all prime numbers = 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 = 408

The total numbers = 8

The average of the numbers = X = \({408\over8}=51\)

∴ The required result will be 51.

Prime Based Question 5:

Find the average of the prime numbers lying between 50 and 76.

  1. 66
  2. 60
  3. 62
  4. 64

Answer (Detailed Solution Below)

Option 4 : 64

Prime Based Question 5 Detailed Solution

Given:

We need to find the average of the prime numbers lying between 50 and 76.

Formula Used:

Average of prime numbers = Sum of prime numbers / Number of prime numbers

Calculation:

Prime numbers between 50 and 76 are 53, 59, 61, 67, 71, 73.

Sum of prime numbers = 53 + 59 + 61 + 67 + 71 + 73

Sum of prime numbers = 384

Number of prime numbers = 6

Average of prime numbers = Sum of prime numbers / Number of prime numbers

⇒ Average of prime numbers = 384 / 6

⇒ Average of prime numbers = 64

The average of the prime numbers lying between 50 and 76 is 64.

Prime Based Question 6:

Find the average of the prime numbers lying between 68 and 91.

  1. 76
  2. 77
  3. 78
  4. 79

Answer (Detailed Solution Below)

Option 4 : 79

Prime Based Question 6 Detailed Solution

Given:

Prime numbers lying between 68 and 91.

Formula Used:

Average of prime numbers = Sum of prime numbers / Number of prime numbers

Calculation:

Prime numbers between 68 and 91: 71, 73, 79, 83, 89

Sum of these prime numbers = 71 + 73 + 79 + 83 + 89

⇒ Sum = 395

Number of prime numbers = 5

Average = 395 / 5

⇒ Average = 79

The average of the prime numbers lying between 68 and 91 is 79.

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