### 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
$=\frac{465}{5}=93$

**Average of 80 number was 42 When 5 more numbers are added average become 45 that means 3 is given to each number to make their average. 45 and 5 numbers also keep 45 as to maintain the entire average. So, the sum of five numbers = 240 + 225 = 465 Hence, average of five numbers = 93**