If you’re looking for a way to enhance your Class 8 Maths, then look no further than the NCERT MCQ Questions for Class 8 Maths Chapter 13 Direct and Indirect Proportions with Answers. The MCQ Questions for Class 8 Maths with Answers are aligned to all topics covered so it will be helpful when preparing for your exams, no matter what subject you’re studying! Don’t forget about scoring maximum points during exam preparation by using these free Class 8 Maths Chapter 13 Direct and Indirect Proportions Objective Questions.
Direct and Indirect Proportions Class 8 MCQs Questions with Answers
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Question 1.
A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. How many parts of base will be used in mixture by mixing 7 part of red pigment?
(a) 70
(b) 56
(c) 63
(d) 49
Answer
Answer: (b) 56
Question 2.
If 3 men or 6 women can do a piece of work in 16 days, in how many days can 12 men and 8 women do the same piece of work?
(a) 4 days
(b) 5 days
(c) 3 days
(d) 2 days
Answer
Answer: (c) 3 days
Question 3.
If the cost of 27 bags of paddy is Rs.9450, what is the cost of 36 bags of paddy?
(a) Rs.12000
(b) Rs.12600
(c) Rs.16200
(d) Rs.10620
Answer
Answer: (b) Rs.12600
Question 4.
Raju earns Rs 1440, if he works for 12 days. If he works for 30 days, he will earn
(a) Rs 2400
(b) Rs 3600
(c) Rs 4800
(d) None of these
Answer
Answer: (b) Rs 3600
Question 5.
The scale of a map is 1:3×107 Two cities are 5 cm apart on the map. Find the actual distance between them in kilometres.
(a) 1500 km
(b) 1000 km
(c) 1100 km
(d) 2000 km
Answer
Answer: (a) 1500 km
Question 6.
An electric pole, 14 metres high, casts a shadow of 10 metres. Find the height of a tree that casts a shadow of 15 metres under similar conditions.
(a) 21 metres
(b) 30 metres
(c) 25 metres
(d) None of these
Answer
Answer: (a) 21 metres
Question 7.
A boy runs 1 km in 10 minutes. How long will he take to ran 600 m ?
(a) 2 minutes
(b) 3 minutes
(c) 4 minutes
(d) 6 minutes
Answer
Answer: (d) 6 minutes
Question 8.
A van covers 432 km with 36 litres of diesel. How much distance would it cover with 25 litres of diesel?
(a) 200 km
(b) 300 km
(c) 100 km
(d) 350 km
Answer
Answer: (b) 300 km
Question 9.
The price of 357 mangoes is Rs.1517.25. What will be the approximate price of 49 dozens of such mangoes?
(a) Rs.3000
(b) Rs.3500
(c) Rs.4000
(d) Rs.2500
Answer
Answer: (a) Rs.3000
Question 10.
72 books are packed in 4 cartons of the same size. How many cartons are required for 360 books?
(a) 22
(b) 18
(c) 20
(d) None of these
Answer
Answer: (c) 20
Question 11.
A garrison of 500 persons had provisions for 27 days. After 3 days a reinforcement of 300 persons arrived. For how many more days will the remaining food last now?
(a) 12 days
(b) 14 days
(c) 16 days
(d) 15 days
Answer
Answer: (d) 15 days
Question 12.
Two quantities x and y are said to be in ___________ if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.
(a) inverse proportion
(b) mix proportion
(c) direct proportion
(d) None of these
Answer
Answer: (c) direct proportion
Question 13.
There is enough food to last for 40 people for 10 days. If 10 more people join them, the food will last for
(a) 10 days
(b) 12 days
(c) 8 days
(d) None of these
Answer
Answer: (c) 8 days
Question 14.
36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?
(a) 24 days
(b) 28 days
(c) 34 days
(d) 35 days
Answer
Answer: (a) 24 days
Question 15.
x varies inversely as square of y. Given that y = 3 for x = 1.find the value of x for y = 4.
(a) 3
(b) 9
(c) \(\frac { 1 }{ 3 }\)
(d) \(\frac { 9 }{ 16 }\)
Answer
Answer: (d) \(\frac { 9 }{ 16 }\)
Question 16.
A journey by bus takes 45 minutes at 40 km/hour. How fast must a car go to undertake the same journey in 25 minutes?
(a) 36 km/h
(b) 48 km/h
(c) 72 km/h
(d) None of these
Answer
Answer: (c) 72 km/h
Question 17.
A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in:
(a) 15 days
(b) 20 days
(c) 25 days
(d) 30 days
Answer
Answer: (c) 25 days
Question 18.
The cost of 5 metres of a particular quality of cloth is Rs 210. Find the cost of 2 metres of cloth of the same type.
(a) Rs 100
(b) Rs 84
(c) Rs 90
(d) Rs 60
Answer
Answer: (b) Rs 84
Question 19.
120 copies of a book cost Rs 600. What will 400 copies cost ?
(a) Rs 1000
(b) Rs 2000
(c) Rs 3000
(d) Rs 2400
Answer
Answer: (b) Rs 2000
Question 20.
6 pipes are required to fill a tank in 1 hour 20 minutes. How long will it take if only 5 pipes of the same type are used?
(a) 56 minutes
(b) 72 minutes
(c) 96 minutes
(d) 80 minutes
Answer
Answer: (c) 96 minutes
Question 21.
8 g of sandal wood cost Rs 40. What will 10 g cost ?
(a) Rs 30
(b) Rs 36
(c) Rs 48
(d) Rs 50
Answer
Answer: (d) Rs 50
Question 22.
When one quantity is increased, the other quantity is also increased. This proportion is called _______
(a) Kally proportion
(b) Direct proportion
(c) Inverse proportion
(d) None of these
Answer
Answer: (b) Direct proportion
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