Quiz on Percentage

There were 1000 students in a class. 20% students admitted and then 10% students left. What is the overall decrease or increase of percentage of students in the class?

• 8% increase

• 10% increase

• 9% decrease

• 10% decrease

The tag price of a shirt is Tk. 2000. The seller gave a discount of 10% on the tag price. What is the selling price of this shirt now?

• Tk. 1900

• Tk. 1950

• Tk. 1850

• None of these

If a student gets 25% of the total marks, it is 30 marks less than that of the pass marks. Again if the student gets 50% of the total marks, it is 20 marks more than that of the pass marks. If 80% of the total marks is the highest, find out the highest marks.

• 200

• 150

• 160

• 170

The seller made a profit of 15% by selling a product. If he sells the product by Tk. 30 more, he will make a profit of 20%. What is the price of the product?

• Tk. 400

• Tk. 500

• Tk. 600

• Tk. 650

There are 100 students in a class. 40% of the students are girls. All students participated in a exam and 50% of the total students pass in that exam. The students who are girls and pass in the exam, are 30% of the total students. How many students are there who are boys and fail in the exam?

• 40%

• 60%

• 40

• 60

The cost price of a product is Tk. 80 and selling price is Tk. 100. What is the profit ?

• 20%

• 25%

• 30%

• 35%

A watch maker sold a watch at 20% profit to a dealer. The dealer sold the watch to a customer at 20% profit. The customer bought the watch at Tk. 1440. What is the making price of the watch?

• Tk. 1200

• Tk. 1300

• Tk. 1400

• None of these

A seller buys 5 chocolates at Tk. 1 and sells 4 chocolates at Tk. 1. What is the profit or loss?

• 20% profit

• 25% profit

• 20% loss

• 25% loss