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The average of 70 numbers is 32. If each number is increased by 3, then the new average will become
- a)31
- b)33
- c)35
- d)37
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
The average of 70 numbers is 32. If each number is increased by 3, the...
New average will increase by the same constant as each number.
i.e. Average = 32 + 3 = 35
i.e. Average = 32 + 3 = 35
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The average of 70 numbers is 32. If each number is increased by 3, the...
Given:
- Average of 70 numbers = 32
To find:
- New average when each number is increased by 3
Solution:
Step 1: Determine the sum of the 70 numbers
- Average = Sum of numbers / Number of numbers
- Sum of numbers = Average * Number of numbers
- Sum of numbers = 32 * 70
- Sum of numbers = 2240
Step 2: Determine the sum of the new set of numbers after increasing each number by 3
- Sum of new numbers = Sum of numbers + (3 * 70)
- Sum of new numbers = 2240 + 210
- Sum of new numbers = 2450
Step 3: Determine the new average
- New average = Sum of new numbers / Number of numbers
- New average = 2450 / 70
- New average = 35
Therefore, the new average when each number is increased by 3 is 35. Hence, the correct answer is option 'C'.
- Average of 70 numbers = 32
To find:
- New average when each number is increased by 3
Solution:
Step 1: Determine the sum of the 70 numbers
- Average = Sum of numbers / Number of numbers
- Sum of numbers = Average * Number of numbers
- Sum of numbers = 32 * 70
- Sum of numbers = 2240
Step 2: Determine the sum of the new set of numbers after increasing each number by 3
- Sum of new numbers = Sum of numbers + (3 * 70)
- Sum of new numbers = 2240 + 210
- Sum of new numbers = 2450
Step 3: Determine the new average
- New average = Sum of new numbers / Number of numbers
- New average = 2450 / 70
- New average = 35
Therefore, the new average when each number is increased by 3 is 35. Hence, the correct answer is option 'C'.
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The average of 70 numbers is 32. If each number is increased by 3, then the new average will becomea)31b)33c)35d)37Correct answer is option 'C'. Can you explain this answer?
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