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In 10 innings, a cricketer scored at an average of 56. After 11th inning his average increases by 4. How many runs he scored in the 11th inning?
1. 90
2. 105
3. 100
4. 110

1 Answer

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Correct Answer - Option 3 : 100

Given

Average score of cricketer in 10 innings is 56

After 11 inning his average increases by 4

Formula used

Average = sum of observation / number of observation

Calculation

Average in 10 innings = 56

⇒ Total runs in 10 innings = 56 × 10 = 560

⇒ After 11 inning average becomes 56 +  = 60 

⇒ Total runs in 11 innings = 60 × 11 = 660 runs

∴ His run in 11th inning is 660 - 560 = 100 runs

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