The Gateway to Computer Science Excellence

+1 vote

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?

- 63
- 72
- 81
- 90

Migrated from GO Mechanical 1 year ago by Arjun

+1 vote

Best answer

52,314 questions

60,435 answers

201,773 comments

95,251 users