Question

Rajesh told Shyam that he did not like this party change into direct speech ​

Answer 1

Answer:

SETS AND VENN DIAGRAMS

Number and Algebra : Module 1Years : 7-8

June 2011

PDF Version of module

Assumed knowledge

Motivation

Content

Describing and naming sets

Subsets and Venn diagrams

Complements, intersections and unions

Solving problems using a Venn diagram

Links Forward

Sets and probability

History and applications

Answers to Exercises

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ASSUMED KNOWLEDGE

Addition and subtraction of whole numbers.

Familiarity with the English words

‘and’, ‘or’, ‘not’, ‘all’, ‘if…then’.

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MOTIVATION

In all sorts of situations we classify objects into sets of similar objects and count them. This procedure is the most basic motivation for learning the whole numbers and learning how to add and subtract them.

Such counting quickly throws up situations that may at first seem contradictory.

‘Last June, there were 15 windy days and 20 rainy days, yet 5 days were neither windy nor rainy.’

How can this be, when June only has 30 days? A Venn diagram, and the language of sets, easily sorts this out.

Let W be the set of windy days,

and R be the set of rainy days.

Let E be the set of days in June.

Then W and R; together have size 25, so

the overlap between W and R is 10.; The Venn diagram opposite displays; the whole situation.

Answer 2

Answer:

Rajesh told shyam he dont like party