Question
Download Solution PDFThe 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.).
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Number of items = 10
Average cost = Rs. 89
Cost of one item = Rs. 35
Formula:
Average = Total/Number of items
Solution:
Total cost of 10 items = Average × Number of items = 89 × 10 = Rs. 890
Total cost of 9 items = Total cost of 10 items - Cost of one item = 890 - 35 = Rs. 855
Average cost of 9 items = Total cost of 9 items/Number of items = 855/9 = Rs. 95
Therefore, the average cost of the remaining 9 items is Rs. 95.
Last updated on Jun 26, 2025
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