Question
Download Solution PDFVishnu scored X runs in his 10th innings. After scoring those runs, his average increased by 8 runs. If the new average is 28, then find the value of X.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Vishnu scored X runs in his 10th innings.
His average after 10th innnings = 28.
After scoring in 10th innings his average increased by 8 runs.
Concept Used:
Average = Total runs/ Total innings
Calculation:
His average after 10th innnings = 28.
After scoring in 10th innings his average increased by 8 runs.
His average in 9th innings = 28 - 8 = 20
Vishnu total runs after 10th inning = 28 × 10 = 280 runs
Vishnu total runs after 9th inning = 9 × 20 = 180 runs.
Vishnu score in 10th inning, X runs = 280 - 180 = 100 runs
∴ Option 4 is the correct answer.
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