請問如何解題

[poh0702]

A K-number is a positive integer with the special proertt that 3 times its units' digit is equal to 2 times its' tens' digit.

Colimn A
_______________
The number of K-numbers between 10and99

Column B
_______________
3

[portia]

proertt大概是property打錯吧

這個數字K的性質是 十位數:個位數=3:2
只能找到三個這樣的數 32, 64, 96