Question

The ratio of pencils to erasers is 1:2. There are 24 pencils and erasers in all. How many pencils and erasers are there?

Answer 1

There are 8 pencils and 16 erasers.

Step-by-step explanation:

Given,

Ratio of pencils to eraser = 1:2

Total number of pencils and erasers = 24

Let,

x be the original number.

Therefore,

Number of pencils = x

Number of erasers = 2x

Thus,

x+2x = 24

$3x=24$

Dividing both sides by 3

$\frac{3x}{3}=\frac{24}{3}\\x=8$

Number of pencils = 8

Number of erasers = 2(8) = 16

There are 8 pencils and 16 erasers.

Keywords: ratio, division

Learn more about ratio at:

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