35% of Rifat's income is equal to 25% of Reaz's income . The ratio of their income is --
A
7 : 5
B
4 : 3
C
4 : 7
D
5 : 7
Correct Answer: 5 : 7
Rifat = x x * .35 % = y * 25% x/y = 25/35 = 5/7 x : y = 5 : 7