Q87 of 116 Page 42

Classify the following statements under appropriate headings.

(a) Getting the sum of angles of a triangle as 180°.


(b) India winning a cricket match against Pakistan.


(c) Sun setting in the evening.


(d) Getting 7 when a die is thrown.


(e) Sun rising from the west.


(f) Winning a racing competition by you.


(a) Since, the sum of angles of a triangle as 180° therefore, it is certain to happen.


(b) The result is unpredictable therefore, it may or may not happen


(c) Since, the sun always sets in the evening therefore, it is certain to happen.


(d) 7 is not an outcome when a dice is thrown therefore it is impossible to happen.


(e) Sun always rises from the east, therefore it is impossible to happen.


(f) The result is unpredictable therefore, it may or may not happen


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85

The pie chart on the right shows the result of a survey carried out to find the modes of travel used by the children to go to school. Study the pie chart and answer the questions that follow.


(a) What is the most common mode of transport?


(b) What fraction of children travel by car?


(c) If 18 children travel by car, how many children took part in the survey?


(d) How many children use taxi to travel to school?


(e) By which two modes of transport are equal number of children travelling

 86

A dice is rolled once. What is the probability that the number on top will be

(a) Odd


(b) Greater than 5


(c) A multiple of 3


(d) Less than 1


(e) A factor of 36


(f) A factor of 6

 88

Study the pie chart given below depicting the marks scored by a student in an examination out of 540. Find the marks obtained by him in each subject.

 89

Ritwik draws a ball from a bag that contains white and yellow balls. The probability of choosing a white ball is . If the total number of balls in the bag is 36, find the number of yellow balls.