Quantitative Aptitude – Arithmetic – Profit and Loss


Slot – 1 – Quantitative Aptitude – Arithmetic – Profit and Loss – On selling a pen at 5% loss and a book at 15% gain

Q. On selling a pen at 5% loss and a book at 15% gain, Karim gains Rs. 7. If he sells the pen at 5% gain and the book at 10% gain, he gains Rs. 13. What is the cost price of the book in Rupees?
  1. 95
  2. 100
  3. 80
  4. 85
Answer: 80

Solution: let the CP of pen = p and that of book = b
So as per question 0.15 b – 0.05 p = 7
Or 15b – 5p = 700 ————-1)
Similarly 10b + 5p = 1300 —–2)
Adding both equations 25b = 2000
Or b = 2000/25 = 80

Online Coaching Course for CAT 2020

a) 900+ Videos covering entire CAT syllabus
b) 2 Live Classes (online) every week for doubt clarification
c) Study Material & PDFs for practice and understanding
d) 10 Mock Tests in the latest pattern
e) Previous Year Questions solved on video