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Standard VI

Mathematics

Formation of Algebraic Expressions

Let S be a se...

Question

Let S be a set of all even integers. If the operations:
1. addition 2. subtraction 3. multiplication 4. division
are applied to any pair of numbers from S, then for which operations is the resulting number is S?

1, 2, 3

and

4

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1, 2

and

3

only

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1

and

3

only

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2

and

4

only

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Solution

The correct option is B $1, 2$ and $3$ only
Addition of two even numbers; subtraction of two even numbers and product of two even numbers is an even number.

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(4)

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(5)

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Let S be a set of all even integers. If the operations:1. addition 2. subtraction 3. multiplication 4. divisionare applied to any pair of numbers from S, then for which operations is the resulting number is S?

The correct option is B 1,2 and 3 onlyAddition of two even numbers; subtraction of two even numbers and product of two even numbers is an even number.

Let S be a set of all even integers. If the operations:
1. addition 2. subtraction 3. multiplication 4. division
are applied to any pair of numbers from S, then for which operations is the resulting number is S?

The correct option is B $1, 2$ and $3$ only
Addition of two even numbers; subtraction of two even numbers and product of two even numbers is an even number.