2 years ago, the ratio of Gowri and Nandhini’s age was 4:5. 8 years hence, this ratio would become 5:6. How old is Nandhini?
A48 years
B50 years
C52 years
D54 years
Answer:
C. 52 years
Read Explanation:
2 years ago, the ratio of Gowri and Nandhini’s age
= 4: 5(4x, 5x)
8 years hence, the ratio of Gowri and Nandhini’s age = 5: 6
(4x + 10) / (5x+10) = (5/6)
24x + 60 = 25x + 50
x = 10
Nandhini’s present age = 5x + 2 = 52 years