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Standard VI

Mathematics

Variable

Ram has a cer...

Question

Ram has a certain number of pens in his hand. If he gets double the number of pens he already had from his friend, which of the following can represent the total number of pens he has?

$x + y$ ( $x$ and $y$ both are the different variables)

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$3 x$

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$x^{3}$

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$x + x y$ ( $x$ and $y$ both are the different variables)

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Solution

The correct option is B
$3 x$

We can take any variable to represent the number of pens he has. Consider ' $x$ ' to be the number of pens he has.
Now if he receives doubles the number of pens he already had i.e. ' $2 x$ '.
Hence, the total number of pens he has = $x + 2 x = 3 x$ .

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Ram has a certain number of pens in his hand. If he gets double the number of pens he already had from his friend, which of the following can represent the total number of pens he has?

The correct option is B 3x We can take any variable to represent the number of pens he has. Consider 'x' to be the number of pens he has. Now if he receives doubles the number of pens he already had i.e. '2x'. Hence, the total number of pens he has = x+2x=3x.

The correct option is B
$3 x$

We can take any variable to represent the number of pens he has. Consider ' $x$ ' to be the number of pens he has.
Now if he receives doubles the number of pens he already had i.e. ' $2 x$ '.
Hence, the total number of pens he has = $x + 2 x = 3 x$ .