Question

If \( 9 + 1 = 81 \), \( 5 + 2 = 49 \), then \( 7 + 3 = \) ?

• A. 64
• B. 70
• C. 100
• D. 81

Hint:

For reasoning-based puzzles, always test patterns like squaring, reversing, or alternate operations before concluding.

Answer 1

The Correct Option is C

Step 1: Identify the pattern from the examples
Given: \[ 9 + 1 = 81 \quad \Rightarrow \quad 9 \times 9 = 81 \] \[ 5 + 2 = 49 \quad \Rightarrow \quad 7 \times 7 = 49 \] So the pattern is: \[ (a + b)^2 \] Step 2: Apply same pattern to \(7 + 3\)
\[ 7 + 3 = 10 \quad \Rightarrow \quad 10^2 = 100 \]