Connecting the Dots Class 7 MCQ

Connecting the Dots Class 7 MCQ

Connecting the Dots Class 7 MCQ

Question 1.

As part of class project, Rekha needs to find the average age of her family members. Rekha writes her family member’s age as follows :

32, 28, 23, 17, 15

Which of these is the average age of members in Rekha’s family?

(a) 15

(b) 17

(c) 23

(d) 32

Solution:

(c) 23

Question 2.

The data below shows the number of balls a batsman played in the past 6 innings he played:

18, 36, 6,12, 18, 36

What is the mean number of balls the batsman faced in an inning?

(a) 36

(b) 21

(c) 126

(d) 15

Solution:

(b) 21

Question 3.

The data below represents the average daily temperature, in °C, of a city in the first week of April:

29, 35, 33, 40, 30, 38, 32

What is the range of the average daily temperature of the city in the first week of April?

(a) 11°C

(b) 40°C

(c) 29°C

(d) 33°C

Solution:

(a) 11°C

Question 4.

What is the median of the data below?

42, 2, 54, 12, 20, 6, 30

(a) 12

(b) 2

(c) 54

(d) 20

Solution:

(d) 20

Question 5.

The bar graph below displays the average salary of employees based on their departments:

If the difference in the average salary of an employee in Department B and Department D is ₹ 40,000, what must be the scale of the bar graph?

(a) 1 unit = ₹ 100

(b) 1 unit = ₹ 400

(c) 1 unit = ₹ 1000

(d) 1 unit = ₹ 4000

Solution:

(d) 1 unit = ₹ 4000

Case Study

Question 1.

Time Spent Walking with Pet Dog Following table depicts the time spent by Manoj walking with his pet dog over the first five days of a week :

(a) What is the mean time for these walks ?

(i) 40.2 minutes

(ii) 45 minutes

(iii) 52 minutes

(iv) 62 minutes

(b) What is the median time for these walks ?

(i) 45 minutes

(ii) 50 minutes

(iii) 60 minutes

(iv) 62 minutes

Fill in the blanks :

(c) Difference of the mean time and the minimum time is _______.

(d) Difference of the median time and the minimum time is _______.

(e) Difference of the maximum time and the mean time is _______.

(f) Difference of the maximum time and the median time is _______.

Solution:

(a) (iii)

(b) (ii)

(c) 9 minutes

(d) 7 minutes

(e) 10 minutes

(f) 12 minutes.

Question 2.

Maximum and Minimum Temperatures Following double bar graph depicts the maximum and minimum temperatures of a city for first six months of a year :

(a) Which month has the greatest range in the two temperatures ?

(i) April

(ii) May

(iii) Jan

(iv) Feb

Fill in the blanks :

(b) Difference between the maximum temperatures of the month of June and Feb. is _______.

(c) Ratio of the maximum and minimum temperatures (in °C) for the month of March is _______.

(d) Mean of the maximum and minimum temperatures for the month of April is _______.

(e) Mean of the minimum temperatures of all these six months is

(i) 25[latex]\frac {1}{3}[/latex] °C

(ii) 25[latex]\frac {1}{6}[/latex] °C

(iii) 24[latex]\frac {1}{3}[/latex] °C

(iv) 25[latex]\frac {5}{6}[/latex] °C

Solution:

(a) (iii)

(b) 10°C

(c) 7 : 5

(d) 32.5°C

(e) (iv)