X bought a dozen pencils for a total of Rs 60 and 20 pens for Rs 200. Find the total average cost of the stationery X bought.
Show answer & explanation
Correct answer: B
Explanation
The Correct answer is Option 2 i.e. Rs 8.125.
Total cost = 60 + 200 = Rs.260
Total number of items = 12 + 20 = 32
We know that,
Average = Sum of observations/Number of observations
Average = 260/32 = Rs.8.125