Bar Graph Data

In the following graph, what is the ratio of the cost of tomatoes per kg in town 1 to the cost of tomatoes per kg in town 2?

• 1:02

• 2:01

• 5:04

• 4:05

Answer explanation

In the graph cost of tomatoes in town 1 = ₹25 and cost of tomatoes in town 2 = ₹20 So its ratio = 25 : 20 = 5 : 4. Hence option 3 is the right answer.

A bar graph is a representation of numbers using bars of ___________.

• Non-uniform height

• Uniform height

• Non-uniform width.

• Uniform width

Answer explanation

The representation of the data in the form of bars or rectangles of uniform width a is called bar graph. Therefore option 4 is the right answer.

In the following bar graph, on which day of the week maximum sale was observed?

• Wednesday

• Saturday

• Thursday

• Tuesday

Answer explanation

In the bar graph, the bar for sales on Saturday is of highest length that is 7 Units, i.e., 70 TVs were sold. Therefore, the maximum sales happened on Saturday. Hence Option2 is the right answer.

Observe the following graph and find the average sale of TVs from Monday to Saturday.

• 51.66

• 44.2

• 77.5

• 155

Answer explanation

Average = Sum of observations/Total number of observations. By observing the graph, we will note down the observations as 30, 45, 65, 55, 45, 70. Therefore average = (30 + 45 + 65 + 55 + 45 + 70)/6 = 310/6 = 51.66 Hence option 1 is the right answer.

Observe the following data for the number of students who visited the library from January to May. Which bar graph represents this data incorrectly?

• 
• 
• 
• 

Answer explanation

In the given table, the smallest value is 500 and the largest value is 950. Hence, the data can be represented by making a kink and taking an appropriate scale and making bars of correct lengths. Here in option 1, the scale is taken as 1 unit= 100 students and the bars are correctly represented vertically. Hence the graph is correct. In option 2, the scale is 1 unit= 100 students and the bars are correctly represented horizontally. Therefore this graph is correct. In option 3, the scale is 1 unit= 50 students and the bars are represented correctly. hence this graph is also correct. In option 4, the scale is 1 unit= 150 students. The bar of February does not represents 550 students rather it represents the value of 575. Hence the graph in option 4 is incorrect.

In the following graph, what is the difference in the cost of onions in both the towns?

• ₹ 20 / kg

• ₹ 15/ kg

• ₹ 10/ kg

• ₹ 5/kg

Answer explanation

In the graph, cost of onions in town 1 = ₹15 and cost of onions in town 2 = ₹30 So the differences in cost = 30 - 15 = 15. Therefore in both the town difference of costs of onion is ₹ 15/ kg

The double bar graph given below shows the sale of bats (in thousands) manufactured by brand A and brand B in three consecutive years. What is the average sale of bats of brand A per year?

• 5000

• 50000

• 30500

• 33333.33

Answer explanation

Total sale of bats of brand A = 20000 + 50000 + 30000 = 100000 Average sale of bats of brand A = 100000/3 = 33333.33

The double bar graph given below shows the production (in the unit of thousand pieces) of two types of biscuits in various years. Study the graph and answer the following question. The production of glucose biscuit was maximum in ____

• 2014

• 2015

• 2016

• 2017

Answer explanation

The production of glucose biscuits is represented by red bar. Since the tallest red bar is made for the year 2016, it indicates that the production of glucose biscuits must be maximum in this year.

The double bar graph given below shows the production (in the unit of thousand pieces) of two types of biscuits in various years. Study the graph and answer the following question. Which year has more production of salted biscuits than glucose biscuit?

• 2014

• 2015

• 2016

• 2017

Answer explanation

If we compare the production of glucose biscuits and salted biscuits for each year, we see that only in year 2015, the production of salted biscuit is more than the production of glucose biscuit.

Construct a double bar graph from the given data. Click 'Yes' after completing the construction.

• Yes

• No

Answer explanation

For the given data the double bar graph can be constructed as shown in the figure.