Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Ratio and Proportion Age
The average age of husband, wife and their son four years ago was 28 years and that of the husband and wife seven years ago was 34 years. How old was the son nine years ago?
1
14 years
2
12 years
3
5 years
4
More than one of the above
5
None of the above