Select the correct answerIn a competitive exam there are 5 papers. The average score of Piyush in first three papers is 64 and his average score in last three papers is 85. If his average score for all the papers is 75. What is his score in the third paper?Options7286766878
Question
Select the correct answerIn a competitive exam there are 5 papers. The average score of Piyush in first three papers is 64 and his average score in last three papers is 85. If his average score for all the papers is 75. What is his score in the third paper?Options7286766878
Solution
To solve this problem, we need to understand that the third paper is counted in both the first three papers and the last three papers.
Step 1: Calculate the total score for the first three papers and the last three papers separately.
The total score for the first three papers is 64 * 3 = 192. The total score for the last three papers is 85 * 3 = 255.
Step 2: Calculate the total score for all five papers.
The total score for all five papers is 75 * 5 = 375.
Step 3: Subtract the total score of the first two papers and the last two papers from the total score of all five papers to find the score of the third paper.
The total score of the first two papers is 192 - 64 = 128. The total score of the last two papers is 255 - 85 = 170.
The score of the third paper is 375 - 128 - 170 = 77.
So, none of the options given are correct. The score in the third paper should be 77.
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