Average of first six multiples of 15 is  Choose the correct answer.
A) 9.5
B) 44.5
C) 52.5
D) 15.75
E) 17.7
Explanation:   Average=15(1+2+3+4+5+6) / 6=315 / 6= 
<gadget id="calculator">315 / 6</gadget>
<output>105/2 = around 52.5</output>
52.5   Option 52.5
<result>C</result>
Average of first six multiples of 15 is