Given:
The average of 10 number is 8.
Solution:
The average of 10 number is 8
Sum of numbers = Average × Number of terms = 8 × 10 = 80
When each number is divided by 2, the new total sum becomes:
New Sum =
The new average is the new total sum divided by the number of terms (which remains 10):
New Average =
The average of the new set of numbers is 4.
Thus the correct answer is (B)
English
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90 Mins English English100 Questions100 Marks90 Mins English English100 Questions100 Marks90 Mins EnglishThe average of 11 results is 59 and that of the first 10 is 58. The 11th result is?
The average of 11 results is 60 and that of the first 10 is 59. The 11th result is?
Bala has thrice as much amount as that of Lalit and Lalit has 10 percent more amount than Vimal. If the average amount of all three of them is ₹1350, then how much amount is with Bala?
The average of 11 consecutive odd numbers is 37. What is the difference between the largest number and the smallest number?
The average of 11 numbers is 44.5. If the average of the first six numbers is 42.5 and that of the last six numbers is 45, then find the middle number.
The average of five numbers is 87.8. The average of the first two numbers is 81.5 and the average of the last two numbers is 93.5. What is the third number?
If the value of 21a + 21b = 1134, what is the average of a + b ?
The sum of three consecutive numbers is 177. The mean of these three numbers is:
The average of eight numbers is 20. The average of five of these numbers is 16. The average of the remaining three numbers is
Pranjal's average earning per month in the first three months of a year was ₹19008. In April, his earning was 50% more than the average earning in the first three months. If his average earning per month for the whole year is ₹99708, then what will be Pranjal's average earning (in ₹) per month from May to December?
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