GATE XE (Engineering Sciences) 2018 - Question 5

All GATE XE (Engineering Sciences) papers | GATE XE (Engineering Sciences) 2018

Section: General Aptitude | Marks: 1

A number consists of two digits. The sum of the digits is 9. If 45 is subtracted from the number, its digits are interchanged. What is the number?

  • A. 63
  • B. 72
  • C. 81
  • D. 90

Answer: B. 72

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