Question

A certain story is selling packages of 10 pencils and 4 pens for back to school. The store manager wants to make larger package in the same ratio. If the larger package has 10, how many pencils are in the large package

Answer 1

25 pencils.

Explanation:

Ratio:

10 pencils x pencils

_________ = _________

4 pens 10 pens

Solve the equation:

10/4 = x/10

Multiply 10 to both sides to isolate x:

*10 *10

100/4

= 25 pencils.

There are 25 pencils for a package of 10 pens.