Let the total number of students be x Average marks obtained by the students = 40 Total marks = 40x After correcting the quantitative mistakes the average decreased by (40-30) = 10 marks Total reduction = 10 × 50 = 500 Now According to the Question, (40x-500)/x = 35 35x = 40x-500 x= 100 Total number of students = 100
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A trader marked an article 70% above its cost price and sold it after allowing a discount of 40%. If the transaction resulted in a profit of Rs. 24, the...
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A microwave oven was sold for Rs. 15,750 at a profit of 25%. If the microwave oven was instead sold at a loss of 9%, what would have been its selling pr...
A dealer bought two washing machines at a certain amount. He sold the first washing machine at a 35% profit and the second washing machine at a 15% loss...
A shirt is marked 35% above the cost price and sold after a discount of Rs.120 at Rs.420. Find the cost price of the shirt.
The profit percentage earned by selling a center table for Rs 13440 is equal to the loss percentage earned by selling the same center table for Rs 10560...
The selling price of an item rose from Rs. 320 to Rs. 448. Calculate the percentage increase in its price.
A shopkeeper give 4 articles free on the purchase of every 12 articles. He also allows a discount of 20% to customer and still earns 20% profit. Find th...
