A dress costs Dh 180. In a sale it is reduced by Dh 20. What is the new price?

1. - B A dress costs Dh 180. In a sale it is reduced by Dh 20. What is the new price? A Reduction Dh 20 ! N Click for the solution / explanation Underline the key words Circle the numbers Allocate letters State the problem in mathematical terms B = 180 A = 20 N = ??? Write down formula B A = N B -A = N • Substitute 180- 20 = N Solve the equation 160 = N %% Type 1 %% Lukas van Veen Write your answer as a sentence The new price is Dh 160.

2. B A clock costs Dh 250. In a sale it is reduced by Dh 50. What is the rate of discount? A R Underline the key words Circle the numbers Discount of .....% Allocate letters State the problem in mathematical terms B = 250 A = 50 R = ??? Write down formula R = A B %% Type 1 %% Lukas van Veen • Substitute R = 50  250 Solve the equation R= 50  250 x 100% = 20% Write your answer as a sentence The rate of discount is 20%.

3. %%Type 2 %%Lukas van Veen B R A villa costs Dh 300 000. After a year the villa is sold for 15% more.i What is the profit?ii What is the selling price? A N Underline the key words Try exercise 7.4: Type 1 & 2 Questions Circle the numbers Allocate letters State the problem in mathematical terms B = 300 000 R = 15% A = ? N = ? Write down formulae A = B x R B A = N B+ A = N • Substitute A = 300 000 x 15  100 300 000 + A = N Solve the equations A = 45 000 300 000 + 45 000 = N 345 000 = N Use a sentence The profit is Dh 45 000, the selling price is Dh 345 000