In a certain pattern, if 9 * 3 = 36, 10 * 6 = 64, 9 * 1 = 25, then in same pattern what is the value of 23 * 3 ?

यदि किसी निश्चित पैटर्न में 9 * 3 = 36, 10 * 6 = 64, 9 * 1 = 25, तो उसी पैटर्न पर 23 * 3 का मान क्या होगा ?

1. A169
2. B52
3. C32
4. D576

Pick an option to check yourself, or open the answer below.

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Correct answer: A. 169

Explanation

a * b = ((a + b) ÷ 2)²: 9 * 3 = 6² = 36, 10 * 6 = 8² = 64, 9 * 1 = 5² = 25. So 23 * 3 = 13² = 169.

a * b = ((a + b) ÷ 2)²; अतः 23 * 3 = 13² = 169।