Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions for Mathematics

Anuradha can do a piece of work in 6 hours. What part of the work can she do in 1 hour, in 5 hours, in 6 hours?

Some pictures are given below. Tell which of them shows:

`2 xx 1/4`

Some pictures are given below. Tell which of them show:

`2 xx 3/7`

Some pictures are given below. Tell which of them show:

`2 xx 1/3`

Some pictures are given below. Tell which of them show:

`1/4 xx 4`

Some pictures are given below. Tell which of them show:

`3 xx 2/9`

Some pictures are given below. Tell which of them show:

`1/4 xx 3`

Cost of a burger is ₹ `20 3/4` and of Macpuff is ₹ `15 1/2`. Find the cost of 4 burgers and 14 macpuffs.

______ can be used to compare two collections of data.

The representation of data with bars of uniform width is called ______.

Observe the given bar graph carefully and answer the questions that follow.

1. What information does the bar graph depict?
2. How many motor bikes were produced in the first three months?
3. Calculate the increase in production in May over the production in January.
4. In which month the production was minimum and what was it?
5. Calculate the average (mean) production of bikes in 6 months.

The bar graph given below shows the marks of students of a class in a particular subject:

Study the bar graph and answer the following questions:

1. If 40 is the pass mark, then how many students have failed?
2. How many students got marks from 50 to 69?
3. How many students scored 90 marks and above?
4. If students who scored marks above 80 are given merits then how many merit holders are there?
5. What is the strength of the class?

Study the bar graph given below and answer the questions that follow.

1. What information does the above bar graph represent?
2. In which year was production the least?
3. After which year was the maximum rise in the production?
4. Find the average production of rice during the 5 years.
5. Find difference of rice production between years 2006 and 2008.

Study the bar graph given below and answer the questions that follow:

1. What information is depicted from the bar graph?
2. In which subject is the student very good?
3. Calculate the average marks of the student.
4. If 75 and above marks denote a distinction, then name the subjects in which the student got distinction.
5. Calculate the percentage of marks the student got out of 500.

The bar graph given below represents the circulation of newspapers (dailies) in a town in six languages (the figures are approximated to hundreds).

Study the bar graph and answer the following questions:

1. Find the total number of newspapers read in Hindi, Punjabi, Urdu, Marathi and Tamil.
2. Find the excess number of newspapers read in Hindi than those in English.
3. Name the language in which the least number of newspapers are read.
4. Write the total circulation of newspapers in the town.

Study the double bar graphs given below and answer the following questions:

1. Which sport is liked the most by Class VIII students?
2. How many students of Class VII like Hockey and Tennis in all?
3. How many students are there in Class VII?
4. For which sport is the number of students of Class VII less than that of Class VIII?
5. For how many sports students of Class VIII are less than Class VII?
6. Find the ratio of students who like Badminton in Class VII to students who like Tennis in Class VIII.

Study the double bar graph shown below and answer the questions that follow:

1. What information is represented by the above double bar graph?
2. In which month sales of Brand A decreased as compared to the previous month?
3. What is the difference in sales of both the Brands for the month of June?
4. Find the average sales of Brand B for the six months.
5. List all months for which the sales of Brand B was less than that of Brand A.
6. Find the ratio of sales of Brand A as compared to Brand B for the month of January.

Study the double bar graph given below and answer the questions that follow:

1. What information is compared in the above given double bar graph?
2. Calculate the ratio of minimum temperatures in the year 2008 to the year 2009 for the month of November.
3. For how many months was the minimum temperature in the year 2008 greater than that of year 2009? Name those months.
4. Find the average minimum temperature for the year 2008 for the four months.
5. In which month is the variation in the two temperatures maximum?

The following table shows the average intake of nutrients in calories by rural and urban groups in a particular year. Using a suitable scale for the given data, draw a double bar graph to compare the data.

Study the double bar graph and answer the questions that follow:

1. What information does the double bar graph represent?
2. Find the total number of boys in all sections of Class VII.
3. In which sections, the number of girls is greater than the number of boys?
4. In which section, the number of boys is the maximum?
5. In which section, the number of girls is the least?