At first glance, this problem looks extremely simple:

40 – 40 ÷ 4 × 2 = ?

But this exact type of equation is where most people make mistakes.

Why?

Because they forget the correct order of operations.

✅ Step-by-step solution:

According to math rules (PEMDAS / BODMAS), you must solve:

Division and multiplication FIRST, from left to right.

So we start with:

40 – 40 ÷ 4 × 2

👉 Step 1:

40 ÷ 4 = 10

Now the equation becomes:

40 – 10 × 2

👉 Step 2:

10 × 2 = 20

Now we have:

40 – 20

👉 Step 3:

40 – 20 = 20

🎯 Final Answer:

b) 20

⚠️ Why most people get it wrong:

A lot of people try to subtract first:

(40 – 40) ÷ 4 × 2 = 0 ❌

That’s incorrect because division and multiplication come before subtraction.

🧠 Quick tip to remember:

Always follow this order:

1. Parentheses
2. Division & Multiplication (left to right)
3. Addition & Subtraction (left to right)

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