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Average · UPSC CDS/OTA · Question 21 of 48

Average : The average runs scored by a cricketer in 42 innings is 30. The difference between his maximum and minimum score in an innings is 100. If these two innings are not taken into consideration, then the average score of the remaining 40 innings is 28. Calculate the maximum runs scored by him in an innings?

Step-by-step solution. Average for UPSC CDS/OTA.

Topic
Average
Subject
Mathematics
Difficulty
Medium
Solve Time
45-60 sec

Solved UPSC CDS/OTA Question

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Q · Average Medium · 45s

The average runs scored by a cricketer in 42 innings is 30. The difference between his maximum and minimum score in an innings is 100. If these two innings are not taken into consideration, then the average score of the remaining 40 innings is 28. Calculate the maximum runs scored by him in an innings?

TopicAverage
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min

Step-by-Step Solution

The complete worked solution.

Every step explained - no skipped algebra.

Let the minimum score = x.

∴ Maximum score = x + 100

∴ x + (x + 100) = 30 × 42 – 40 × 28

⇒ 2x + 100 = 1260 – 1120 = 140

⇒ 2x = 140 – 100 = 40

∴ x = 20

Hence, the maximum score = x + 100

= 20 + 100 = 120

Final Answer: Option B - 120
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The average runs scored by a cricketer in 42 innings is… - Average (Mathematics) Solved Question