The ratio of the ages of Maala and Kala is 4 : 3. The total of their ages is 2.8 decades. The proportion of their ages after 0.8 decades will be [1 Decade = 10 years]
Answer: D
Let, Maala’s age = \(4A\) and Kala's age = \(3A\)
Then, \(4A + 3A =28\)
\(A=4\)
Maala’s age = 16 years
and Kala’s age = 12 years
Proportion of their ages after 8 is = \((16 + 8) : (12 + 8)\)
\(=24:20\)
\(=6:5\)