Correct option is B
According to question
The lowest cost price of 10 books = 10 × 400 = 4000
The greatest selling price of 10 books = 10 × 700 = 7000
Now,
The required profit = (SP - CP)
= 7000 - 4000 = 3000
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Question
Certain books are bought at prices ranging from ₹400 to ₹500 per book and are sold at prices ranging from ₹500 to ₹700 per book. Find the greatest possible profit that might be made in selling 10 books.
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