Tales by Dots and Lines Class 8 Assertion and Reasoning Questions

Tales by Dots and Lines Class 8 Assertion and Reasoning Questions

Tales by Dots and Lines 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) : The given below time-temperature graph is called a line graph.

(R) : Points representing temperatures at different time have been joined successfully by line-segments.

Answer:

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

2. (A) : According to same time-temperature graph, maximum temperature is at 3 pm.

(R) : Maximum temperature is 38°C.

Answer:

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

3. (A) : According to the above graph, the temperature at 10 am can be assumed as 33°C.

(R) : The perpendicular drawn at 10 am to the X-axis intersect the graph at point depicting a temperature very close to 32°C.

Answer:

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

4. (A) : The given figure, AB cannot be a time-temperature graph.

(R) : At one time, there can be more than one temperatures.

Answer:

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

5. (A) : Median of the data 41, 50, 68, 97, 94, 98, 94 and 60 is 68.

(R) : Observations in the ascending order are 41, 50, 60, 68, 94, 97 and 98.

Answer:

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