Question

39.998 % of 440.005 +? % of 654.889 = 229.81

• A. 6
• B. 8
• C. 7
• D. 12

Answer 1

Answer: (B)

8

Answer 2

Let the unknown percentage be $x$. The given equation is: $39.998 \% \text{ of } 440.005 + x \% \text{ of } 654.889 = 229.81$

Calculate the first term: $39.998 \% \text{ of } 440.005 \approx 0.4 \times 440 = 176$

Substitute this into the equation: $176 + \frac{x}{100} \times 654.889 \approx 229.81$

Isolate the term with $x$: $\frac{x}{100} \times 654.889 \approx 229.81 - 176 = 53.81$

Solve for $x$: $x \approx \frac{53.81 \times 100}{654.889} \approx \frac{5381}{655} \approx 8.2175$

The closest integer option is 8.