The ages of Misha and Kamal are in the ratio of 4 : 3 respectively. After 9 years the ratio of their ages will be 7 : 6. What is the difference in their present ages?
A2
B13
C12
D3
Answer:
D. 3
Read Explanation:
The ratio of ages of Misha and Kamal = 4 : 3
After 9 years
Ratio of ages of Misha and Kamal= 7 : 6
(4x + 9)/(3x +9) = 7/6
6(4x + 9) = 7(3x + 9)
24x + 54 = 21x + 63
3x = 9
x = 9/3 = 3
Misha= 4x = 12
Kamal= 3x = 9
Difference between their present age= 3