A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?

Question

Satt Academy · Accepted Answer

Let, the price of pen and pencil be x Tk. and y Tk. respectively.

According to question =

2(3x+6y)=12x+4y

=6x+12y=12x+4y

=6x=8y

$∴$ y= $\frac{6 x}{8} = \frac{3 x}{4} . . . . . . . . . . . . . (i)$

$∴$ 2 pens and 4 pencils cost

=2x+4y

=2x+4 $\times \frac{3 x}{4}$

=2x+3x

=5x

That means 2x+4y=5x

i.e. the total cost of 2 pens and 4 pencils is equal to the 5 times of one pen.

A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?

Question:
A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?

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A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?

Question: A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?

গণিত

Related Question

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Question:
A school store sells only one kind of pen and pencil at a uniform price per pen or per pencil. If the cost of 3 pens and 6 pencils is twice that of 12 pens and 4 pencils, then the total cost of 2 pens and 4 pencils is how many times that of one pen?