Alan wants to spend 1/5 of his money on a toy and 1/4 of it on a book. If he has $20, how much money will he have left over?
(1/5) * 20 = 4
(1/4) * 20 = 5
20 - 9 = ?
Yes.
To solve this problem, we need to find the amount of money Alan will spend on the toy and the book, and then subtract that total from the amount of money he currently has.
First, let's find the amount Alan will spend on the toy. We know that he wants to spend 1/5 of his money on a toy. To find this amount, we can multiply his total money by 1/5:
Toy cost = (1/5) * $20 = $4
Next, let's find the amount Alan will spend on the book. Again, we know that he wants to spend 1/4 of his total money on a book. To find this amount, we can multiply his total money by 1/4:
Book cost = (1/4) * $20 = $5
Now, let's find the total amount of money Alan will spend on the toy and the book by adding the individual costs:
Total cost = $4 (toy cost) + $5 (book cost) = $9
Finally, to find the amount of money Alan will have left over, we need to subtract the total cost from the amount of money he currently has:
Money left over = $20 - $9 = $11
Therefore, Alan will have $11 left over after purchasing the toy and the book.