engineering recuitment UPCL AE (E&M) 2021 Mock Test Quantitative Aptitude Algebra Linear Equation in 1 Variable
The ratio of ages of A and B is 11 : 13 respectively. After 7 years the ratio of their ages will be 20 : 23. What is the difference between their ages?
1
5 years
2
6 years
3
3 years
4
10 years