Final answer:
To find the new average of the marks scored by Raju, calculate the sum of all his marks and divide it by the total number of papers. The new average is 15.
Step-by-step explanation:
To find the new average of the marks scored by Raju, we need to calculate the sum of all his marks and divide it by the total number of papers.
Since Raju scored 52 marks in three papers and 60 marks in the fourth paper, we can find the new average as follows:
New average = (Average of three papers * Total number of papers - Total marks of three papers + Marks in the fourth paper) / Total number of papers
Substituting the given values, we get:
New average = (52 * 3 - (52 * 3) + 60) / 4 = (156 - 156 + 60) / 4 = 60 / 4 = 15
Therefore, the new average of the marks scored by Raju is 15.