When Xiaohong calculates the division without remainder, she regards the dividend 160 as 190, the quotient is 3 more than the original, and there is no remainder. Please calculate the divisor of this question.
小红在计算没有余数除法时，把被除数160看作190，商比原来多3，而没有余数，请你计算出这道题的除数．
<gadget id="calculator">190 - 160</gadget>
<output>30</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<result>10</result>