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Grade 8 - Mathematics
9.24 Word Problems on Trade Discount

Example 1:
The market price of an article is $18,000. By selling it at a discount of 20% the loss is 4% find its cost price.
Solution:
Market price = $18,000 and discount = 20%
Therefore, Selling price = M.P(100 - d%) / 100
= 18,000 (100 - 20) / 100
= 18,000 * 80 / 100
Selling price = 14,400
Selling price = $14,400 and loss = 4%
Therefore, Cost price = (Selling price * 100) / (100 - l%)
= (14,400 * 100) / (100-4)
= 1,440,000 / 96
Cost price = $15,000

Example 2:
Jake wants to buy a skateboard. The regular price of the board is $135. Suppose it is on sale at a 25% discount. Find the sale price of the skateboard.
Let d represent discount.
d = 0.25(135) = 33.75
Selling price = 135 - 33.75 = 101.25


Directions: Solve the following questions. Also write at least 5 examples of your own.
Q 1: The market price of an article is $2,400. If it makes a gain of 8% after 10% discount. Find the cost of manufacture and at what percentage the market price is fixed over and above manufacture cost.
20%
25%
15%
12%

Q 2: The market price of an article is $1,200. By selling it at a discount of 20%. It gives a loss of 4% what is the cost price.
$1,000
$1,050
$900
$1,100

Q 3: The cost of manufacture of a radio is $1,150. The market price is fixed 20% above the cost. What percentage of discount may be allowed so that there may be a gain of 8%.
12%
8%
10%
16%

Q 4: The market price of jeans is fixed 28% above the cost of production. What percentage of discount may be allowed so that the gain may be 12%.
13 1/2%
12 1/2%
13 1/3%
15%

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!


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