On dividing 123 by a number, the quotient is 7 and the remainder is 4. Find the divisor. Choose the correct choice from the following answers: A) 15 B) 16 C) 17 D) 18 E) 19
d = (D-R)/Q   = (123 - 4)/7   = 119/7= 
<gadget id="calculator">119/7</gadget>
<output>17</output>
17   17
<result>C</result>
On dividing 123 by a number, the quotient is 7 and the remainder is 4. Find the divisor.