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³√?/9261 = 11/21

Correct answer: B. 1331

  • A. 121
  • B. 1331
  • C. 14641
  • D. 2662

Explanation

Since 9261 = 21^3, the equation can be written as cube root of ? divided by 21^3 equals 11/21. Cubing both sides gives ?/21^3 = 11^3/21^3, so ? = 11^3 = 1331. The likely trap is 121, which comes from squaring 11 instead of cubing it.

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