Proportional Reasoning 1 Class 8 Assertion and Reasoning Questions

Proportional Reasoning 1 Class 8 Assertion and Reasoning Questions

Proportional Reasoning 1 Class 8 Assertion and Reasoning Questions

In each of the following questions, two statements have been given. One has been labelled as Assertion (A) and the other has been labelled as Reason (R). You have to choose the correct option, from the given four options.

(a) Both the statements (A) and (R) are correct and (R) is the correct explanation of (A).

(b) Both the statements (A) and (R) are correct but (R) is not the correct explanation of (A).

(c) (A) is correct but (R) is not correct,

(d) (R) is correct but (A) is not correct.

1. (A): 36 : 63 : : 4 : 7

(R): HCF of 36 and 63 is 9.

Answer:

(a) Both the statements (A) and (R) are correct and (R) is the correct explanation of (A).

2. (A): If cost of 7 m of cloth is ₹ 1470, then cost of 5 m cloth will be ₹ 1050.

(R) : Cost of 1 m cloth is ₹ 205.

Answer:

(c) (A) is correct but (R) is not correct,

3. (A): Simplest form of 75 : 100 is 3 : 4.

(R): LCM of 75 and 100 is 300.

Answer:

(b) Both the statements (A) and (R) are correct but (R) is not the correct explanation of (A).

4. (A) : If in a class of 50 students, ratio of number of boys and number of girls is 2 : 3, then number of girls is 20.

(R): Number of girls = [latex]\frac{50 \times 3}{\text { Sum of the ratios }}[/latex]

Answer:

(d) (R) is correct but (A) is not correct.

5. (A) : 50°C converted to Fahrenheit is 122° F

(R) : [latex]\frac{C}{5}=\frac{F-32}{9}[/latex]

Answer:

(a) Both the statements (A) and (R) are correct and (R) is the correct explanation of (A).