On dividing 23 by a number, the quotient is 7 and the remainder is 2. Find the divisor.  Options.
A) 1  B) 2  C) 3  D) 6  E) 7
d = (D-R)/Q   = (23 - 2)/7   = 21/7= 
<gadget id="calculator">21/7</gadget>
<output>3</output>
3   3
<result>C</result>
On dividing 23 by a number, the quotient is 7 and the remainder is 2. Find the divisor.