Question

\( 9.6 \times 3.6 \div 7.2 + 10.8 { of } \frac{1}{18} - \frac{1}{10} = ? \)

• A. 15.56
• B. 10.56
• C. 5.3
• D. 15.36

Hint:

When solving a complex expression, break it down into smaller parts and follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

Answer 1

The Correct Option is C

Step 1: Evaluate the expression step by step.
The given expression is: \[ 9.6 \times 3.6 \div 7.2 + 10.8 { of } \frac{1}{18} - \frac{1}{10} \] Step 2: Solve the first part \( 9.6 \times 3.6 \div 7.2 \).
First, multiply \( 9.6 \times 3.6 \): \[ 9.6 \times 3.6 = 34.56 \] Now, divide by 7.2: \[ 34.56 \div 7.2 = 4.8 \] Step 3: Solve the second part \( 10.8 { of } \frac{1}{18} \).
To find \( 10.8 { of } \frac{1}{18} \), we multiply: \[ 10.8 \times \frac{1}{18} = 0.6 \] Step 4: Solve the third part \( - \frac{1}{10} \).
This is simply: \[ - \frac{1}{10} = -0.1 \] Step 5: Combine all parts.
Now, add up all parts: \[ 4.8 + 0.6 - 0.1 = 5.3 \] Thus, the final answer is \( 5.3 \).