Question

Suppose you buy several pens at a discount store. All the pens are the same price, and you buy as manypens as the cost (in cents) of each pen. The total is $1.44. How many pens did you buy?

Answer 1

12

Explanation:

Number of pens bought = price in cents=`x`

Number of pens*price = final price =1.44$=144 cents

`x^2=144 cents`
`rarr x= sqrt144=12 cents`
`rArr 12 pens`