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| Maths Quiz for Class 7 Percentage |
In this post, you will find 20 online maths quiz questions for class 7 percentage. Online maths quiz will take around 20 minutes to complete it.
Question 1: Convert ¾ into percentage.
A) 25%
B) 50%
C) 75%
D) 80%
Explanation: ¾ = ¾ × 100% = 75%
Question 2: When 45% is converted into fraction, we get __________.
A) 9/20
B) 9/10
C) 9/50
D) 45/80
Explanation: 45% = 45/100 = 9/20
Question 3: Convert 0.16 into percentage.
A) 16%
B) 1.6%
C) 160%
D) 1600%
Explanation: 0.16 = 0.16 × 100/100 = 16/100 = 16%
Question 4: When 35% is expressed as a decimal, we get ____________.
A) 3.5
B) 0.35
C) 0.035
D) 350.0
Explanation: 35% = 35/100 = 0.35
Question 5: Convert 25% into ratio.
A) 1 : 2
B) 1 : 4
C) 1 : 3
D) 3 : 4
Explanation: 25% = 25/100 = ¼ = 1 : 4
Question 6: 65% of the students of a class like cricket and the remaining students like football. What percentage of the total students like football?
A) 15%
B) 25%
C) 35%
D) 45%
Explanation: 65% means 65 out of 100. Thus, the percentage of the students who like football = (100 – 65)% = 35%
Question 7: Nisha has a total of 20 hairbands. Out of which, 12 are red in colour. What percentage of the hairbands are not in red colour?
A) 30%
B) 40%
C) 50%
D) 60%
Explanation: Number of hairbands which are not in red colour = 20 – 12 = 8. Thus, 8 out of 20 hairbands are not in red colour. Percentage of the hairbands which are not in red colour = 8/20 × 100 = 40%
Question 8: Out of 60 students of a class, 45 students are girls. Find the percentage of the boys in the class.
A) 75%
B) 50%
C) 40%
D) 25%
Explanation: Number of boys in the class = 60 – 45 = 15. Percentage of boys = 15/60 × 100 = 25%
Question 9: Find 35% of 1 kg.
A) 350 g
B) 250 g
C) 370 g
D) 450 g
Explanation: 35% of 1 kg = 35/100 × 1000 g = 350 g
Question 10: 25% of what amount will be ₹ 180?
A) ₹ 360
B) ₹ 540
C) ₹ 720
D) ₹ 900
Explanation: Let 25% of ₹ X = ₹ 180. Then, 25/100 × X = ₹ 180 => X/4 = ₹ 180 => X = ₹ 720
Question 11: The ratio of boys and girls in a class is 3 : 2. Find the percentage of boys and girls in that class.
A) 40%, 60%
B) 60%, 40%
C) 50% 50%
D) 70%, 30%
Explanation: Sum of the terms of ratio = 3 + 2 = 5. Percentage of boys = 3/5 × 100 = 60%. Percentage of girls = 2/5 × 100 = 40%
Question 12: The salary of Ritu increased from ₹ 40,000 to ₹ 44,000. Find the percentage increase in her salary.
A) 12%
B) 10%
C) 8%
D) 6%
Explanation: Increase in salary = ₹ 44,000 – ₹ 40,000 = ₹ 4000. Percentage increase = Increase/Initial value × 100 = 4000/40000 × 100 = 10%
Question 13: The price of a pair of shoes is decreased from ₹ 800 to ₹ 750. Find the percentage decrease in the price of the pair of shoes.
A) 6.25%
B) 6.5%
C) 6%
D) 7.5%
Explanation: Decrease in the price of the shoes = ₹ 800 – ₹ 750 = ₹ 50. Percentage decrease = Decrease/Initial value × 100 = 50/800 × 100 = 6.25%
Question 14: If an item is bought for ₹ 1500 and sold for ₹ 1800, then find the profit percentage.
A) 10%
B) 12%
C) 15%
D) 20%
Explanation: CP = ₹ 1500; SP = ₹ 1800; Profit = SP – CP = ₹ 1800 – ₹ 1500 = ₹ 300. Profit percentage = Profit/CP × 100 = 300/1500 × 100 = 20%
Question 15: If an electric iron is bought for ₹ 600 and sold for ₹ 450, then what is the percentage loss incurred by the shopkeeper?
A) 15%
B) 20%
C) 25%
D) 30%
Explanation: CP of electric iron = ₹ 600; SP of electric iron = ₹ 450; Loss = CP – SP = ₹ 600 – ₹ 450 = ₹ 150. Loss percentage = Loss/CP × 100 = 150/600 × 100 = 25%
Question 16: Nishant bought a motorcycle for ₹ 30,500 and spent ₹ 1,500 for its repair. If he sold it at a profit of 10%, then find the selling price of the motorcycle.
A) ₹ 35,000
B) ₹ 35,200
C) ₹ 35,300
D) ₹ 35,400
Explanation: CP of motorcycle = ₹ 30,500 + ₹ 1500 = ₹ 32,000. Profit percentage = 10%. Profit = 10% of ₹ 32,000 = 10/100 × 32,000 = ₹ 3200. Selling price of the motorcycle = CP + profit = ₹ 32,000 + ₹ 3200 = ₹ 35,200
Question 17: Calculate the simple interest of ₹ 8000 at 8% p.a. for 5 years.
A) ₹ 3200
B) ₹ 3000
C) ₹ 3100
D) ₹ 3500
Explanation: Here, P = ₹ 8000; R = 8% p.a.; T = 5 years. SI = PRT/100 = (8000 × 8 × 5)/100 = 80 × 8 × 5 = ₹ 3200
Question 18: Find the amount to be paid if ₹ 12,000 is borrowed at 5% p.a. simple interest for 4 years.
A) ₹ 14,000
B) ₹ 14,200
C) ₹ 14,400
D) ₹ 14,500
Explanation: P = ₹ 12,000; R = 5%; T = 4 years. SI = PRT/100 = (12,000 × 5 × 4)/100 = 120 × 5 × 4 = ₹ 2400; Amount = P + SI = ₹ 12,000 + ₹ 2400 = ₹ 14,400
Question 19: ₹ 20,000 deposited in a bank at the rate of 8% p.a. amounted to ₹ 24,000 in a few years. Find the time taken.
A) 2 years
B) 2.5 years
C) 3 years
D) 3.5 years
Explanation: Simple interest = ₹ 24,000 – ₹ 20,000 = ₹ 4000. T = 100 × SI/PR = 100 × 4000 / 20,000 × 8 = 400000/160000 = 2.5 years
Question 20: A sum is doubled in 8 years at the rate of simple interest. Find the rate of interest.
A) 11.5%
B) 10.5%
C) 12.5%
D) 12%
Explanation: Let the sum is ₹ x, then the amount is ₹ 2x. Simple interest = ₹ 2x – ₹ x = ₹ x. Rate of interest = (100 × Interest) / PT = (100 × x) / (x × 8) = 100/8 = 12.5%
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