Question

3 ×4 = 25, 5 × 6 = 61, 6 × 7 = 85 എങ്കിൽ 9 × 10 = ?

• A. 109
• B. 910
• C. 181
• D. 190

Answer 1

Answer:

C. 181

3 × 4 = 25 ( 3 ^2 + 4 ^2) 5 × 6 = 61 ( 5 ^2 + 6 ^2) 6 × 7 = 85 ( 6 ^2 + 7 ^2) 9 × 10 = 9 ^2 + 10 ^2 = 81+100 =181