Q.

A number is multiplied by 2 and 2 is added to the product their sum is divided by 2, then the quotient is 2. The required number is

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a

2

b

1

c

3

d

4

answer is B.

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Detailed Solution

Let the number be 'x'

Multiplied by '2'  and '2'  is added to the product =2x+2

The sum is divided by '2'is2x+22

As per the problem this result is equal to 2.

2x+22=2

2x+2=2×2

2x+2=4

2x=42

2x=2

By dividing by 2

2x2=22

x=1

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