Given the following number codes: 623 = 49, 516 = 62, and 438 = 89. Then what is 583?
Question and options
Given the following number codes: 623 = 49, 516 = 62, and 438 = 89. Then what is 583?
- 36
- 98
- 65
- 69
Answer and explanation
Correct answer: B - 98
Code = sum of squares of the digits: 36+4+9=49, 25+1+36=62, 16+9+64=89. So 583 = 25+64+9 = 98.
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