10. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
A. 6 : 7
B. 4 : 5
C. 2 : 5
D. 3 : 5
10. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
A. 6 : 7
B. 4 : 5
C. 2 : 5
D. 3 : 5