Question
A bookseller made a profit of (100/9) % on selling a book.
If he had purchased the book for 12.5% less than its original cost price and sold it for ₹6,240 more than the initial selling price, his profit would have been 60%. Determine the original cost price of the book.Solution
Let the initial cost price of the book be Rs. '72x'
So, the initial selling price of the book = (10/9) X 72x = Rs. '80x'
So, new cost price of the book = 0.875 X 72x = Rs. '63x'
And new selling price of the book = Rs. (80x + 6240)
ATQ;
1.6 X 63x = 80x + 6240
Or, (8/5) X 63x = 80x + 6240
Or, 63x = 50x + 3900
Or, 13x = 3900
Or, x = 300
Therefore, initial cost price of the book = 72x = 72 X 300 = Rs. 21,600
The NER–Japan International Academic and Research Consortium will have which institution acting as the nodal body on the Indian side?Â
Who among the folloiwng union minister will be leading Indian delegation to attend the 27th Session of Conference of Parties of the UNFCCC (COP 27)?
- Which city ranked first in the "Cleanest Mega City" category under Swachh Survekshan 2025?
Which airport ranked as the 7th busiest airport globally in 2025, according to OAG data?Â
According to the UNICEF report "Learning Interrupted," which climate event affected the highest number of students globally in 2024?
When was the Border Security Force (BSF) established?
In 2024, which new material was introduced in the manufacturing of solar panels to significantly increase their efficiency beyond the traditional silico...
Which country has declared 2025 as the ‘Year of Community’ under the "Hand in Hand" initiative?
ToneTag, a voice-based commerce and payments solution provider has launched payment infrastructure named CUSP for digital payments like central bank...
How much liquidity did the RBI drain from the system through its recent $5 billion USD/INR swap?Â