   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 4/4)

Question - Type 6 -
The Marked price of a ball is Rs 300/-, but the seller sell it to you for Rs 270/-. Find the discount provided and discount %.

The difference between Marked price and actual selling price
= 300-270 = 30 is discount.
Discount % = (30/300)*100 = 10 i.e. discount is 10 %

Question - Type 7 -
Marked price of a table is Rs 300. Seller sells it at a discount of 20% and still earns a profit of 20%. What is the C.P.

S.P. = (M.P.) - (M.P. * Discount %)/100
= 300 - (300 * 20)/100 = 300 - 60 = 240
Profit % = 100 * (S.P. - C.P.)/(C.P.)
i.e. C.P. = (100 * S.P.)/(100 + profit %)
= (100 * 240)/(100+20) = 24000/120 = Rs 200

Question - Type 8 -
If market price is Rs 525/- and Cost Price is Rs 500/-. What is max discount margin available.