The average cost of 10 items is Rs.89. If one item costs Rs.35, then find the average cost of remaining 9 items (in Rs.).
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 95.
Average = Sum of observations/Number of observations
The sum of the 10 items = 89 × 10 = Rs.890
According to the question,
The average of remaining 9 items = (890 - 35)/9 = 855/9 = Rs.95