A shopkeeper sells a fan for Rs. 800, losing 20%. Find the cost price. MCQ with Answer and Explanation

Explanation:
Let Cost Price = 100x. Marked Price = 125x. Selling Price = 125x * 0.90 = 112.5x. Profit = 12.5x. 12.5x = 50. x = 4. Cost Price = 100 * 4 = 400.

Explanation:
Let CP of 1 = 1, CP of 10 = 10, SP of 12 = 10 => SP of 1 = 10/12 = 0.833, loss = 16.67%.

Explanation:
Let the cost price be 100. Marked Price = 100 + 20% of 100 = 120. Discount = 10% of Marked Price = 12. Selling Price = 120 - 12 = 108. Profit = Selling Price - Cost Price = 108 - 100 = 8. Profit Percentage = 8%.