9. In an Off Season Sale, a shopkeeper makes a profit of 50 on sale of one shirt and a loss of 20 on sale
of a pair of pants. Find the number of shirts sold by him, if the total profit made by him is 820 and the
number of pants sold is 4.
Answers
Total profit = Profit on shirts - Loss on pants;
Let there are x number of shirts:
820 = 50 * x - 4*20;
820 + 80 = 50x;
900 = 50x;
x = 900/50 = 90/5;
x = 18:
Shopkeeper sale 18 shirts and 4 pants;
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18 shirts
Step-by-step explanation:
Let the number of shirts sold by him = x
The profit made on each shirt sold = Rs 50
Therefore, the profit made on selling the shirts = 50 * x
The loss on selling a pair of pants = Rs 20
Number of pairs of pants sold = 4
Therefore, the loss on selling the pants = 20 * 4 = Rs 80
Total profit = the profit made on selling the shirts - the loss on selling the pants
Given; Total profit = 820
820 = (50 * x) - 80
820 + 80 = 50x
50x = 900
Dividing by 50 on both sides
x = 18
Therefore, the number of shirts that were sold = x = 18