   Web Development : Starting from Concept, HTML, CSS, Web Site Develpment to Website Launching.
Written by: Sanjay Srivastava
B.Tech (Honours);IIT Kharagpur
PMP ; PMI USA

Class - VIII - Maths:- INDEX

1. Squares & Square Roots
2. Cubes & Cube Roots
4. Profit Loss & Discount
5. Compound Interest
6. Algebraic Identities 7. Polynomials 8. Linear Equations 9. Parallel Lines 10. Types of Quadrilaterals 11. Construction of Quadrilaterals 12. Circles 13. Areas 14. Surface Areas 15. Volumes 16. Statistics Class - VIII - Maths

## How to Calculate Profit and Loss (Page 1/4)

Important Tips (1) Profit and Loss are the difference between cost /purchase price and the selling price

'XX (Profit Loss) = Selling Price (S.P.) - Cost Price (C.P.) ;

if XX is +ve then it's Profit and if XX is -ve it's Loss

(2) Profit Loss % are always expressed in terms of C.P.
Profit % = (S.P. - C.P.)*100 / C.P.
Loss % = (C.P. - S.P.)*100 / C.P.

Question - Type 1 - Ram purchase 100 mango for Rs 75 and sold for Rs 125. What is his loss or profit and what %.

Answer - 1- Sine he has sold for more than the C.P. therefore he has earned a profit.
profit = S.P. - C.P.
= 125 - 75
= Rs 50 is profit
Profit % = (profit)*100 / C.P.
= 50*100 / 75 = 66.67 %

Question - Type 2 - Ram purchase 100 mango for Rs 175 and sold for Rs 125. What is his loss or profit and what %.

Answer - 2- Sine he has sold for less than the C.P. therefore he has earned a loss.
profit = C.P. - S.P.
= 175 - 125
= Rs 50 is Loss
Profit % = (Loss)*100 / C.P.
= 50*100 / 75 = 66.67 %