Question
A man purchases some pens at a rate of 4 for ₹14 and
an equal number at a rate of 5 for ₹18. He sells all the pens at a rate of 6 for ₹20. What is his overall percentage gain or loss?Solution
Let he buys total number of pens (LCM of 4, 5, 6) = 60 (30-30 of both type) Costing of 30 pens at 4 for Rs 1 4 = Rs 105 Costing of 30 pens at 5 for Rs 18 = Rs 108 Total cost price of 60 pens = 105+108 = Rs 213 Selling price of 60 pens at 6 for Rs 20 = 200 
A universal product code is read by what type of scanner:
What is the fourth layer in the OSI model?
What is the use of "AI-based fraud detection" in online banking?
What is a 'Hyperlink' in a webpage?
Which memory type is typically faster but more expensive compared to others?
Which component is known as the brain of the computer?
Which is not an example of application software?
Segmentation and reassembly is the responsibility of
Integrated circuit is related to which generation of computer?
Which technology is associated with the development of autonomous vehicles?
Relevant for Exams:
