Which one of the following is divisible by 9?
Choices
A) 23, 50, 821
B) 28, 70, 052
C) 42, 13, 533
D) 64, 000, 80
E) 65, 000, 90
Explanation:   (a) 2350821 = 2+3+5+0+8+2+1= 
<gadget id="calculator">2+3+5+0+8+2+1</gadget>
<output>21</output>
21, not divisible by 9   (b) 2870052= 2+8+7+5+2= 
<gadget id="calculator">2+8+7+5+2</gadget>
<output>24</output>
24, not divisible by 9.   (c) 4213533= 4+2+1+3+5+3+3 = 19, not divisible by 9.   (d) 6400080 = 6+4+8= 
<gadget id="calculator">6+4+8</gadget>
<output>18</output>
18, divisible by 9.   Answer: 64, 000, 80
<result>D</result>
Which one of the following is divisible by 9?