Average of 80 numbers are 42. When 5 more numbers are included, the average of 85 numbers become 45. Find the average of 5 numbers.
A. 82
B. 89
C. 93
D. 98
Show Answer
Answer-C
Solution-
Solution(By Apex Team)
Total of 80 numbers
= 80 × 42 = 3360
Now, total of 85 numbers
= 85 × 45 = 3825
Hence, sum of 5 numbers
= 3825 – 3360 = 465
Average of five numbers
$=\frac{465}{5}=93$