engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Ratio and Proportion Age
Eighteen years ago, the ratio of A's age to B's age was 8 ∶ 13. Their present ratio is 5 ∶ 7; What is the present age of A.
1
60
2
70
3
50
4
40