Fractions in Disguise Class 8 MCQ
easyFractions in Disguise Class 8 MCQ
Fractions in Disguise Class 8 MCQ
Question 1.
Out of 40 bulbs in a carton, 6 bulbs are fused. What percent of the total bulbs are fused?
(a) 6%
(b) 15%
(c) 60%
(d) 85%
Answer:
(b) 15%
Question 2.
Naman is checking the eggs kept in a tray if they are rotten or not. He finds that 15% of the total eggs are rotten. What fraction of the total rotten? eggs in the tray is rotten?
(a) [latex]\frac{20}{3}[/latex]
(b) [latex]\frac{3}{2}[/latex]
(c) [latex]\frac{3}{20}[/latex]
(d) [latex]\frac{2}{3}[/latex]
Answer:
(c) [latex]\frac{3}{20}[/latex]
Question 3.
A quality analyst checks the quality of the bottles manufactured by his company. He finds that 8% of the bottles were defective. Which of the following option correctly infers the given statement?
(a) 2 out of every 10 bottles were defective
(b) 8 out of every 10 bottles were defective
(c) 2 out of every 100 bottles were defective
(d) 8 out of every 100 bottles were defective
Answer:
(d) 8 out of every 100 bottles were defective
Question 4.
Arun prepares a mixture of milk and water by taking 3 parts of milk and 1 part of water. What would be the percentages of milk and water in such a mixture?
(a) Milk : 3% and Water : 1%
(b) Milk : 7.5% and Water : 2.5%
(c) Milk : 30% and Water : 10%
(d) Milk : 75% and Water : 25%
Answer:
(d) Milk : 75% and Water : 25%
Question 5.
The owner of an appliance store decides to decrease the price of a coffee maker from ₹ 1,450 to ₹ 1,160.
By what percentage will the price of coffee maker decrease?
(a) 2.9%
(b) 20%
(c) 25%
(d) 29%
Answer:
(b) 20%
Question 6.
Darshit borrowed a certain amount for 4 years at an interest rate of 8% per annum in the year 2007. He borrowed the same amount for the same time period again in the year 2013 but at 14% interest rate per annum. If he paid ? 1,200 fewer interest at the end of the year 2011 than that paid at the end of the year 2017, what sum did he borrow in 2007?
(a) ₹ 500
(b) ₹ 5,000
(c) ₹ 6,600
(d) ₹ 7,800
Answer:
(b) ₹ 5,000
Question 7.
A shopkeeper bought 10 machines for ? 7,50,000 from a wholesale store. He marked the price of each machine as ₹ 80,000. If he sold each machine after a discount of 10%, which of these statements is correct?
(a) The shopkeeper has made a loss of ₹ 30,000 after selling the machines.
(b) The shopkeeper has made a loss of ₹ 80,000 after selling the machines.
(c) The shopkeeper has made a profit of ₹ 30,000 after selling the machines.
(d) The shopkeeper has made a profit of ₹ 80,000 after selling the machines.
Answer:
(a) The shopkeeper has made a loss of ₹ 30,000 after selling the machines.
Question 8.
Arvind borrows a sum of ₹ 2,50,000 at 6% p.a. simple interest for 3 years. On the same day, Asif borrows the same sum on the same rate of interest but compounded annually for 3 years. Who pays more interest and by how much?
(a) Asif will have to pay ₹ 2,754 more than Arvind as interest.
(b) Asif will have to pay ₹ 7,454 more than Arvind as interest.
(c) Arvind will have to pay ₹ 2,754 more than Asif as interest.
(d) Arvind will have to pay ₹ 7,454 more than Asif as interest.
Answer:
(a) Asif will have to pay ₹ 2,754 more than Arvind as interest.
Case Study
Question 1.
Increase or Decrease Per Cent
(а) If value of x is increased by 20%, it is equal to the value of y. If the value of y is decreased by 50%, it is equal to the value of z. Then, what per cent of x is equal to 2?
(i) 70%
(ii) 60%
(iii) 50%
(iv) 40%
Fill in the blanks :
(b) If the value of x is 300, then value of y is _________ .
(c) If the value of x is 500, then value of z is ___________ .
(d) If the value of z is 900, then value of y is __________ .
(c) If the value of x is 400, then the sum of the values of y and z is ___________ .
Answer:
(a) (ii)
(b) 360
(c) 300
(d) 1800
(e) 720
Question 2.
Sale at Discount
(а) A shopkeeper marked the price of each of the two tables at ₹ 2500 and sold each table at a discount of 2%. If the cost price of the two tables is ₹ 4500, then shopkeeper gain or loss in the transaction is
(i) ₹ 100 loss
(ii) ₹ 100 gain
(iii) ₹ 400 loss
(iv) ₹ 400 gain
Fill in the blanks :
(b) Total discount given by the shopkeeper is ____________ .
(c) The gain per cent on the transaction is ___________ .
(d) Had the C.P. been ₹ 4000, then the gain of the shopkeeper would have been _________ .
(e) In that case, the gain per cent would have been _________ .
Answer:
(a) (iv)
(b) ₹ 100
(c) 8[latex]\frac{2}{9}[/latex]%
(d) ₹ 900
(e) 22[latex]\frac{1}{2}[/latex]%