Chapter 11 Algebra Ex 11.1
Chapter 11 Algebra Ex 11.1 Question 1. Find the rule which gives the number of matchsticks required to make the following matchsticks patterns. Use a variable to write the rule. (a) A pattern of letter T as T (b) A pattern of letter Z as Z (c) A pattern of letter U as U (d) […]
Chapter 10 Mensuration
Chapter 10 Mensuration Very Short Answer Type Question 1. The perimeter of a square is 64 cm. Find the length of each side. Solution: Perimeter of the square = 64 cm Question 2. Length and breadth of a rectangular table-top are 36 cm and 24 cm respectively. Find its perimeter. Solution: Length of the rectangular […]
Chapter 10 Mensuration Ex 10.3
Chapter 10 Mensuration Ex 10.3 Question 1. Find the areas of the rectangles whose sides are: (a) 3 cm and 4 cm (b) 12 m and 21 m (c) 2 km and 3 km (d) 2 m and 70 cm Solution: (a) Length of the rectangle = 3 cm Breadth of the rectangle = 4 […]
Chapter 10 Mensuration Ex 10.2
Chapter 10 Mensuration Ex 10.2 Question 1. Find the areas of the following figures by counting square: Solution: (a) Number of full squares = 9 Area of 1 square = 1 sq unit ∴ Area of 9 squares = 9 x 1 sq unit = 9 sq units. So, the area of the portion covered […]
Chapter 10 Mensuration Ex 10.1
Chapter 10 Mensuration Ex 10.1 Question 1. Find the perimeter of each of the following figures: Solution: (a) Required perimeter = 4 cm + 2 cm + 1 cm + 5 cm = 12 cm (b) Required perimeter = 40 cm + 35 cm + 23 cm + 35 cm = 133 cm or 1.33 […]
Chapter 9 Data Handling
Chapter 9 Data Handling Very Short Answer Type Question 1. A die was thrown 35 times and the following numbers were obtained: 5, 1, 4, 2, 3, 2, 6, 6, 1, 4, 2, 5, 4, 5, 3, 6, 1, 5 2, 6, 2, 5, 4, 1, 3, 2, 1, 4, 1, 6, 2, 6, 3, […]
Chapter 9 Data Handling Ex 9.4
Chapter 9 Data Handling Ex 9.4 Question 1. A survey of 120 school students was done to find which activity they prefer to do in their free time. Draw a bar graph to illustrate the above data taking scale of 1 unit length = 5 students. Which activity is preferred by most of the students […]
Chapter 9 Data Handling Ex 9.3
Chapter 9 Data Handling Ex 9.3 Question 1. The bar graph given below shows the amount of wheat purchased by government during the year 1998-2002. Read the bar graph and write down your Observations. In Which year was (a) the wheat production maximum? (b) the wheat production minimum? Solution: (a) In the year of 2002, […]
Chapter 9 Data Handling Ex 9.2
Chapter 9 Data Handling Ex 9.2 Question 1. Total number of animals in five villages are as follows: Village A : 80 Village B : 120 Village C : 90 Village D : 40 Village E : 60 Prepare a pictograph of these animals using one symbol ⊗ to represent 10 animals and answer the […]
Chapter 9 Data Handling Ex 9.1
Chapter 9 Data Handling Ex 9.1 Question 1. In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks. (a) Find how many students obtained marks equal to or more than 7. (b) How many students obtained marks below 4? Solution: From the given data, […]