Selina Solutions Concise Mathematics Class 6 Chapter 10 Sets Exercise 10(A) gives clear answers for the exercise wise problems which rely on formation of Sets. Students who aim to grasp the fundamental concepts covered under this exercise are advised to practice Selina Solutions repeatedly. This also helps them to build a strong hold on the subject and hence, come out with flying colours in the final examination. Download the Selina Solutions Concise Mathematics Class 6 Chapter 10 Sets Exercise 10(A) in PDF, from the links available below
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Exercise 10(A)
1. State whether or not the following elements form a set, if not, give reason:
(i) All easy problems in your text book.
(ii) All three sided figures.
(iii) The first five counting numbers.
(iv) All the tall boys of your class.
(v) The last three days of the week.
(vi) All triangle that are difficult to draw.
(vii) The first three letters of the English alphabet.
(viii) All tasty fruits.
(ix) All clever boys of class 6.
(x) All good schools in Delhi.
(xi) All the girls in your class, whose heights are less than your height.
(xii) All the boys in your class, whose heights are more than your height.
(xiii) All the problems in your Mathematics book, which are difficult for Amit.
Solutions:
(i) No, the given elements do not form a set because some problems may be easy for one person but difficult to some other person. Here the objects are not well defined.
(ii) Yes, the given elements form a set.
(iii) Yes, the given elements form a set.
(iv) No, the objects given here do not form a set because the definition of tall boys is not well defined
(v) Yes, the given elements form a set
(vi) No, the objects given here do not form a set, because it may be difficult to draw a given triangle for a boy but it may be easy for another to draw a same triangle
(vii) Yes, the given elements form a set
(viii) No, the objects given here do not form a set, because a fruit may be tasty for one person but it may not be tasty for another person
(ix) No, the objects given here do not form a set, because cleverness of boys is not well defined
(x) No, the objects given here do not form a set, because all the people do not find the same schools as good as other
(xi) Yes, the given elements form a set
(xii) Yes, the given elements form a set
(xiii) Yes, the given elements form a set
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