Question

If '+' means '÷', '—' means '+', '×' means '—' and '÷' means '×', then what will be the value of the following expression?

[{(36 × 16) — (5 ÷ 3)} + (2 — 5)]

• A. 1
• B. 15
• C. 5
• D. 10

Answer 1

Answer:

C. 5

The value of the expression is 5.

First, decode the mathematical operators using the given code rules:

• + becomes ÷

• – becomes +

• × becomes –

• ÷ becomes ×

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1. Substituting the signs into the expression:

• Original: [{(36 × 16) – (5 ÷ 3)} + (2 – 5)]

• Decoded: [{(36 – 16) + (5 × 3)} ÷ (2 + 5)]

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2. Solving using BODMAS rules:

• Step 1: Solve the small innermost brackets first:

  • (36 – 16) = 20

  • (5 × 3) = 15

  • (2 + 5) = 7

  • The expression now looks like: [{20 + 15} ÷ 7]

• Step 2: Solve the curly braces:

  • {20 + 15} = 35

  • The expression now looks like: [35 ÷ 7]

• Step 3: Solve the final division inside the square brackets:

  • 35 ÷ 7 = 5