The ratio of the ages of Maala and Kala is 1 : 4. The total of their ages is 2.0 decades. The proportion of their ages after 0.5 decades will be
[1 Decade = 10 years]	Pick one.
A) 6:5	B) 3:4	C) 2:5	D) 7:9	E) 3:6
Let, Maala’s age = A and Kala’s age =4A   Then A + 4A = 20   A =5   Maala’s age = 5 years   and Kala’s age = 20 years   Proportion of their ages after 5 is = (5 + 5) : (20 + 5)   = 10 : 25   = 2 : 5   Answer : 2:5
<result>C</result>
The ratio of the ages of Maala and Kala is 1 : 4. The total of their ages is 2.0 decades. The proportion of their ages after 0.5 decades will be
[1 Decade = 10 years]