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 Jul 8, 2025
-> The Staff Selection Commission released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.
-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
-> Now the total number of vacancy is 53,690. Previously, SSC GD 2025 Notification was released for 39481 Vacancies.
-> The selection process includes CBT, PET/PST, Medical Examination, and Document Verification.
-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.