Exams › IBPS PO › Quantitative Aptitude
Avg(A,B)=27. C replaces A → avg becomes 24. C replaces B → avg becomes 23. Find sum of ages of A, B, C after 4 years.
- 74 years
- 78 years
- 88 years
- 86 years
Correct answer: 86 years
Solution
A+B=54, B+C=48, A+C=46. Adding: 2(A+B+C)=148 → A+B+C=74. Each ages 4 years: sum after 4 years=74+4×3=86.
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