Average marks of 5 boys is 36. If the marks of another boy is also included, their average marks becomes 32. Find the marks of the sixth boy?
Answer: 12
Explanation
The total marks of 5 boys is 36 * 5 = 180.
When the sixth boy's marks are included, the total becomes 32 * 6 = 192.
The sixth boy's marks are 192 - 180 = 12.
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