 |
Maths Quiz for Class 8 Applications of Percentage |
In this post, we are providing 20 online maths quiz
questions for class 8 applications of percentage. Online maths quiz will take
around 20 minutes to complete it.
Question 1: Express 65% as a fraction.
A) 17/20
B) 15/20
C) 13/20
D) 11/20
Explanation: 65% = 65/100 = 13/20
Question 2: Express 36% as a decimal.
A) 0.36
B) 0.18
C) 0.036
D) 3.6
Explanation: 36% = 36/100 = 0.36
Question 3: Express 3/10 as a percentage.
A) 30%
B) 15%
C) 60%
D) 40%
Explanation: 3/10 = 3/10 × 100% = 30%
Question 4: Express 0.08 as a percentage.
A) 0.8%
B) 8%
C) 80%
D) 0.008%
Explanation: 0.08 = 0.08 × 100% = 8%
Question 5: Find 35% of 800 g.
A) 240 g
B) 280 g
C) 290 g
D) 360 g
Explanation: 35% of 800 g = 35/100 × 800 g = 280 g
Question 6: Find 7.5% of ₹ 1000.
A) ₹ 37.50
B) ₹ 150
C) ₹ 75
D) ₹ 65
Explanation: 7.5% of ₹ 1000 = 7.5/100 × ₹ 1000 = 7.5 × ₹ 10 = ₹ 75
Question 7: In a class of 40 students, 18 are girls. Find the percentage of girls in the class.
A) 35%
B) 45%
C) 40%
D) 55%
Explanation: Percentage of girl = 18/40 × 100 = 45%
Question 8: Hemant got 85% marks in his final exam. If the maximum marks of the exam is 500, then find his marks obtained.
A) 400 marks
B) 410 marks
C) 420 marks
D) 425 marks
Explanation: Marks obtained = 85% of 500 = 85/100 × 500 = 425 marks
Question 9: Neelam scored 80% marks in her annual exam. If she got 480 marks, then find the maximum marks of the exam.
A) 600
B) 700
C) 800
D) 500
Explanation: Let maximum marks of the exam be x. Percentage marks = Marks obtained / Maximum marks × 100. Therefore, 80 = 480/x × 100 => 80x = 48000 => x = 48000/80 => x = 600. Thus, the maximum mark is 600.
Question 10: The salary of Ramesh is ₹ 40,000 per month. If he spends 25% on household expenses, 10% on children’s education and 20% on miscellaneous expenses. Find his monthly savings.
A) ₹ 16,000
B) ₹ 17,000
C) ₹ 18,000
D) ₹ 15,000
Explanation: His percentage savings = 100% – (25% + 10% + 20%) = 100% – 55% = 45%. Therefore, his monthly savings = 45% of ₹ 40,000 = 45/100 × ₹ 40,000 = ₹ 18,000
Question 11: Pankaj got an increment of ₹ 3500 on his salary. If his salary was ₹ 50,000, then find the percentage increment in his salary.
A) 6%
B) 7%
C) 8%
D) 9%
Explanation: Percentage increment = Increment/Original salary × 100. Therefore, increment% = 3500/50000 × 100 = 7%
Question 12: The price of an item was ₹ 200 before one year. Now, its price is ₹ 225. Find the percentage increase in price.
A) 12%
B) 12.5%
C) 13%
D) 11.5%
Explanation: Increase in price = ₹ 225 – ₹ 200 = ₹ 25. Increase% = 25/200 × 100 = 12.5%
Question 13: The price of a mobile phone was ₹ 16,000 when it was launched. If its price is ₹ 13,600 now, then find the percentage decrease in its price.
A) 15%
B) 12%
C) 10%
D) 8%
Explanation: Decrease in price = ₹ 16,000 – ₹ 13,600 = ₹ 2400. Decrease% = 2400/16000 × 100 = 15%
Question 14: A shopkeeper bought a washing machine for ₹ 12,000 and sold it for ₹ 12,720. Find his profit percentage.
A) 9%
B) 8%
C) 7%
D) 6%
Explanation: CP = ₹ 12,000, SP = ₹ 12,720. Profit = SP – CP = ₹ 12,720 – ₹ 12,000 = ₹ 720. Profit% = Profit/CP × 100 = 720/12000 × 100 = 6%
Question 15: The marked price of a shirt is ₹ 1500. If the rate of discount is 10%, then what is its selling price?
A) ₹ 1200
B) ₹ 1250
C) ₹ 1350
D) ₹ 1300
Explanation: MP of shirt = ₹ 1500. Amount of discount = 10% of ₹ 1500 = 10/100 × ₹ 1500 = ₹ 150. Selling price = ₹ 1500 – ₹ 150 = ₹ 1350
Question 16: Nishant bought a motorcycle for ₹ 80,000 and sold it at a loss of 35%. Find the selling price of the motorcycle.
A) ₹ 62,000
B) ₹ 52,000
C) ₹ 42,000
D) ₹ 56,000
Explanation: Selling price of the motorcycle = CP – Loss = ₹ 80,000 – 35% of ₹ 80,000 = ₹ 80,000 – 0.35 × ₹ 80,000 = ₹ 80,000 – ₹ 28,000 = ₹ 52,000
Question 17: A sari marked at ₹ 3600 is sold at a discount of 10%. If the shopkeeper still makes a profit of 20%, what is the cost price of the sari?
A) ₹ 2700
B) ₹ 2600
C) ₹ 2500
D) ₹ 2800
Explanation: MP of sari = ₹ 3600. Discount = 10% of ₹ 3600 = 10/100 × ₹ 3600 = ₹ 360. SP of sari = ₹ 3600 – ₹ 360 = ₹ 3240. Let CP be ₹ x. Then, profit% = Profit/CP × 100 => 20 = (₹ 3240 – x)/x × 100 => 20x = 324000 – 100x => 120x = 324000 => x = 324000/120 => x = ₹ 2700. Thus, the cost price of sari is ₹ 2700.
Question 18: Rohit bought a car for ₹ 7,75,000. Registration, insurance, etc. cost him ₹ 25,000. After 4 years, he sold the car at ₹ 4,80,000. Find his loss percentage.
A) 35%
B) 20%
C) 40%
D) 30%
Explanation: Cost price of the car = ₹7,75,000 + ₹ 25,000 = ₹ 8,00,000. Selling price of the car = ₹ 4,80,000. Loss = ₹ 8,00,000 – ₹ 4,80,000 = ₹ 3,20,000. Loss% = Loss/CP × 100 = (₹ 3,20,000 / ₹ 8,00,000) × 100 = 40%
Question 19: The price of an air conditioner (AC) is ₹ 32,000. If 18% of GST is charged, find the amount payable by the customer.
A) ₹ 35,760
B) ₹ 37,760
C) ₹ 36,760
D) ₹ 37,660
Explanation: Price of AC = ₹ 32,000. Rate of GST = 18%. Amount of GST = 18% of ₹ 32,000 = 18/100 × ₹ 32,000 = ₹ 5760. Amount payable by the customer = ₹ 32,000 + ₹ 5760 = ₹ 37,760
Question 20: Upendra bought a ceiling fan for ₹ 1792, including 12% of GST. What is the price of the fan before the GST is added?
A) ₹ 1800
B) ₹ 1700
C) ₹ 1600
D) ₹ 1500
Explanation: Let the price of fan before the GST is added, is ₹ x. Amount of GST = ₹ (1792 – x). Therefore, ₹ (1792 – x) = 12% of x => 1792 – x = x × 12/100 => 1792 = x + 0.12x => 1792 = 1.12x => x = 1792/1.12 => x = ₹ 1600
Report Card
Total Questions Attempted: 0
Correct Answers: 0
Wrong Answers: 0
Percentage: 0%