Question

If 20 - 10 means 200, 8 ÷ 4 means 12, 6 × 2 means 4, then \[ \left[ (100 - 10) \times (1000 \div 1000) \right] + (100 \times 10) = \]

• A. 20
• B. 0
• C. 1090
• D. None of these

Hint:

Look for patterns in number puzzles and apply the same operations to similar expressions.

Answer 1

The Correct Option is B

Step 1: Based on the given pattern: - \( 20 - 10 \) means 200, which implies the difference is multiplied by 20.
- \( 8 \div 4 \) means 12, which implies the result of the division is multiplied by 3.
- \( 6 \times 2 \) means 4, which implies the result of the multiplication is divided by 3.
Step 2: Apply this pattern to the given expression \( \left[ (100 - 10) \times (1000 \div 1000) \right] + (100 \times 10) \):
- \( 100 - 10 = 90 \), so multiply by 20: \( 90 \times 20 = 1800 \).
- \( 1000 \div 1000 = 1 \), so no change.
- \( 100 \times 10 = 1000 \).
Step 3: Add them together: \[ 1800 + 1000 = 2800 \] Thus, the correct answer is (b) 0.