on dividing 123 by a number, the quotient is 7 and the remainder is 4. find the divisor. Choose the correct option:
A) 15
B) 16
C) 17
D) 18
E) 19
<gadget id="calculator">123 / 7</gadget>
<output>123/7 = around 17.571429</output>

<gadget id="calculator">floor(123/7)</gadget>
<output>17</output>

<result>C</result>
on dividing 123 by a number, the quotient is 7 and the remainder is 4. find the divisor.
floor(divide(123, 7))
"d = ( d - r ) / q = ( 123 - 4 ) / 7 = 119 / 7 = 17 c"