Question

If 'Z' denotes 'addition', ' X' denotes 'multiplication', ' y' denotes 'division', and ' W' denotes 'subtraction', then what will be the value of the following expression?

3.2 Z (0.56 Y 1.4 x 4) W5 x 5 Y25 z 5.

• A. 6.9
• B. 8.8
• C. 8.6
• D. 9.8

Answer 1

Answer:

B. 8.8

Replace the symbols with their meanings:

• Z = +

• X = ×

• Y = ÷

• W = −

So the expression becomes:

3.2 + (0.56 ÷ 1.4 × 4) − 5 × 5 ÷ 25 + 5

Now apply BODMAS:

1. Inside the brackets:

   • (0.56 \div 1.4 = 0.4)

   • (0.4 \times 4 = 1.6)

2. Multiplication and division:

   • (5 \times 5 \div 25 = 25 \div 25 = 1)

3. Addition and subtraction:

   • (3.2 + 1.6 - 1 + 5)

   • (4.8 - 1 + 5 = 3.8 + 5 = 8.8)

Final Answer: 8.8