Question

Kenton has read 48 pages of his book. If this is equal to 40% of his book, how many pages is the entire book?

Answer 1

120

Explanation:

because i had it on a dca

Answer 2

120

Explanation:

We know that 40% of x is 48, we can set this porportion (is that what it is called?).

• 48/x=40/100
• Cross multiply, 4800=40x
• Divide, 120=x

Check your work:

• 40/100=4/10=2/5
• 48/120=4/10=2/5