Proportional Reasoning 1 Class 8 MCQ
easyProportional Reasoning 1 Class 8 MCQ
Proportional Reasoning 1 Class 8 MCQ
Question 1.
Raj at bought 750 g of onions and 1.5 kg of tomatoes. Which option correctly compares the quantities of vegetables Raj at bought?
(a) Tomatoes were twice the quantity of onions
(b) There was equal quantity of tomatoes and onions
(c) Onions were twice the quantity of tomatoes
(d) Tomatoes were three times the quantity of onions
Answer:
(a) Tomatoes were twice the quantity of onions
Question 2.
Every month a person earns ₹ a, saves, ₹ b and spends the rest. What is the ratio of expenditure to the earnings per month?
(a) (a + b) : a
(b) (a - b) : (a + b)
(c) (a - b) : b
(d) (a - b) : a
Answer:
(d) (a - b) : a
Question 3.
The ratio 16 is to 44 is the same as
(a) 2 is to 11
(b) 1 is to 2
(c) 4 is to 11
(d) 11 is to 4
Answer:
(c) 4 is to 11
Question 4.
If 8:10 is equivalent to (1.2m) : (2m - 5), which of these is equivalent to (m + 5) : (2m + 5)?
(a) 1 : 1
(b) 3 : 5
(c) 25 : 15
(d) 4 : 5
Answer:
(b) 3 : 5
Question 5.
In which order should the numbers 6, 12, 18 and 36 be placed such that they are in proportion?
(a) 36 : 12 :: 6 : 18
(b) 36 : 18 :: 6 : 12
(c) 18 : 12 :: 36 : 6
(d) 18 : 36 :: 6 : 12
Answer:
(d) 18 : 36 :: 6 : 12
Question 6.
For what value of t, the numbers 9, 15, t, (2t - 1) will be in proportion where t is a number greater than 1?
(a) [latex]\frac{1}{3}[/latex]
(b) 3
(c) 5
(d) 6
Answer:
(b) 3
Question 7.
At an exhibition, a man can purchase 5 tickets for ₹ 675. To purchase 7 tickets in total, how much more money is needed?
(a) ₹ 270
(b) ₹ 370
(c) ₹ 945
(d) ₹ 1620
Answer:
(a) ₹ 270
Question 8.
If 9 : 15 :: 27 : m are in proportion, what is the value of m?
(a) 5
(b) 45
(c) 33
(d) 16.2
Answer:
(b) 45
Case Study
Question 1.
Making Sauce
Here is a recipe for making 250 millilitres (mL) of Sauce :
Observe the above recipe and fill in the blanks :
(a) Mixed vegetables oil required to make one litre of sauce is _________.
(b) Vinegar required to make 500 mL of sauce is __________ .
(c) Grinded spices required to make 750 mL of sauce is ____________ .
(d) Ratio of vinegar and grinded spices in the sauce is ________.
(e) Ratio of the vinegar with the mixed vegetables oil and grinded spices together is
(i) 15 : 24
(ii) 8 : 17
(iii) 7 : 3
(iv) 3 : 7
Answer:
(a) 680 mL
(b) 150 mL
(c) 15 mL
(d) 15 : 1
(e) (iv)
Question 2.
Natural Sources of Vitamin C
Following table depicts the amount of Vitamin C in some types of food :
Observe the table and fill in the blanks:
(a) Ratio of Vitamin C obtained from apples and pineapples is _________ .
(b) Ratio of Vitamin C obtained from lemons and blackcurrants is ___________ .
(c) Ratio of Vitamin C obtained from tomatoes and oranges is ___________ .
(d) Ratio of Vitamin C obtained from tomatoes and pineapples is __________ .
(e) Ratio of Vitamin C obtained from pineapples and blackcurrants is ___________ .
(f) In which of the above two foods, ratio of the Vitamin C contents is 1 : 1 ?
Answer:
(a) 1 : 5
(b) 1 : 4
(c) 1 : 2
(d) 5 : 6
(e) 3 : 20
(f) lemons and oranges.