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Question
Students of Class VI in a school were given a task to count the number of articles made of different materials in the school. The information collected by them is represented as follows:
| Material used | Articles  = 20 articles |
| Wood |  |
| Glass |  |
| Metal |  |
| Rubber |  |
| Plastic |  |
Observe the pictograph and answer the following questions:
(a) Which material is used in maximum number of articles?
(b) Which material is used in minimum number of articles?
(c) Which material is used in exactly half the number of articles as those made up of metal?
(d) What is the total number of articles counted by the students?
Solution
The number of articles of different materials is depicted (represented) by the following table
| Material used | Articles | Number of articles |
| Wood | |
20 + 10 = 30 |
| Glass | |
20 |
| Metal | |
20 + 20 + 10 = 50 |
| Rubber | |
20 + 5 = 25 |
| Plastic | |
20 + 15 = 35 |
(a) Metal is used in the maximum number of articles.
(b) Glass is used in the minimum number of articles.
(c) From the pictograph, we observe that 50 articles were made of metal whereas 25 articles were made of rubber, which is exactly half the number of articles as those made up of metal.
(d) Total number of articles = Articles made of (wood + glass + metal + rubber + plastic)
= 30 + 20 + 50 + 25 + 35 = 160
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