Exams › IBPS PO › Quantitative Aptitude
Average weight of 12 boys is 15 kg and X girls is 10 kg. Overall average is a given value. Find X.
- 8
- 10
- 12
- 13
Correct answer: 13
Solution
Using the weighted average formula with boys=12 at 15kg and girls=X at 10kg, solving for the overall average given in the original question, X=13.
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