If 30% of a number is equal to one-third of another number, what is the ratio of first number to the second number ?	Choose the correct choice from the following choices:
A) 2:5
B) 3:7
C) 10:9
D) 7:3
E) None of these
Explanation :   Let 30% of A=1/3B   Then, 30A/100=1B/3   =&gt; 3A/10=B/3   =&gt; A:B= 10 : 9   Answer : 10:9
<result>C</result>
If 30% of a number is equal to one-third of another number, what is the ratio of first number to the second number ?