4 similar pencils cost $1.90. Find the cost of 24 such pencils.
We can set up a proportion to find the cost of 24 pencils.
Let x represent the cost of 24 pencils.
We know that 4 pencils cost $1.90.
So, we have the proportion:
4 pencils / $1.90 = 24 pencils / x
Cross-multiplying, we get:
4x = $1.90 * 24
4x = $45.60
Dividing both sides by 4, we find:
x = $45.60 / 4
x = $11.40
Therefore, the cost of 24 pencils is $11.40.