100 pens cost x dollars. How many pens can be purchased for 50 cents, assuming the same rate?
Solution:
Given,
Cost of 100 pens = x dollars.
Cost of 1 pen = x/100 dollars
Number of pens that can be purchased for 50 cents i.e. 0.5 dollars.
Cost of n pens = Number of pens that can be purchased/cost of 1 pen
Substituting the values
= (0.5 dollars) / (x/100dollars)
So we get
= 50/x pens
Therefore, 50/x pens can be purchased for 50 cents.
100 pens cost x dollars. How many pens can be purchased for 50 cents, assuming the same rate?
Summary:
If 100 pens cost x dollars, for 50 cents 50/x pens can be purchased.
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