Question
Maha Bazaar offers 20% discount on bags which have been marked 50% above the cost price. Amarnath pays Rs. 840 for a bag. Then the cost price of the bag is = ?
Answer: Option B
Let the cost price of bag is = 100 units
∴ Marked price of the bag = 150 units
Selling price of the bag :
$$\eqalign{
& 150 \times \frac{{80}}{{100}} = 120{\text{ units}} \cr
& {\text{120 units = Rs. 840}} \cr
& {\text{1 units = 7}} \cr
& {\text{100 units = Rs. 700}} \cr} $$
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Let the cost price of bag is = 100 units
∴ Marked price of the bag = 150 units
Selling price of the bag :
$$\eqalign{
& 150 \times \frac{{80}}{{100}} = 120{\text{ units}} \cr
& {\text{120 units = Rs. 840}} \cr
& {\text{1 units = 7}} \cr
& {\text{100 units = Rs. 700}} \cr} $$
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