Question : The average of 8 numbers is 44. The average of the first three numbers is 50 and the average of the next two numbers is 52. If the sixth number is 6 and 8 less than the seventh and eighth numbers respectively, then what is the value of the eighth number?

Option 1: 36

Option 2: 32

Option 3: 40

Option 4: 56

Question : The average of 40 results is 15. If 5 is subtracted from each result, then what will be the new average of the results?

Option 1: 12

Option 2: 15

Option 3: 11

Option 4: 10

Question : What is the value of $\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51}$ of $(\frac{1}{9}+\frac{1}{8})+(\frac{63}{56} \times \frac{48}{72})$?

Option 1: $\frac{21}{56}$

Option 2: $\frac{19}{56}$

Option 3: $\frac{45}{56}$

Option 4: $\frac{15}{56}$

Question : The average of nine numbers is 20. If two of these numbers are removed, then the average becomes 18. What is the sum of the two numbers that are removed?

Option 1: 56

Option 2: 58

Option 3: 54

Option 4: 52

Question : If P = 7 × 4 – 3, Q = 8 ÷ 4 + 2, and R = 14 ÷ 21 × 9, then what is the value of P × Q + R?

Option 1: 96

Option 2: 112

Option 3: 108

Option 4: 106