The average of six consecutive odd numbers is 36. If next four consecutive odd numbers are included, then what is the average of all the numbers?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 40
Let first number = x
6 odd numbers: x , x+2 , x+4 , x+6 , x+8 , x+10
(6x + 30)/6 = 36
x = 31
Next 4: 43,45,47,49
Total sum = 216 + 184 = 400
Average = 400/10 = 40