Question 1157101: A man can buy a number of shirts with £720. If each shirt is £2 cheaper, he can buy 4 more shirts. How many did he buy? Answer by ikleyn(52778) (Show Source):
Let n be the number of the shirts under the question.
Then you have this equation for n
- = 4.
(price of one shirt in the hypothetical scenario MINUS price of one sheet in real scenario).
Simplify by dividing both sides by 4
- = 1.
Reduce to the standard quadratic equation form and get the answer n = 20.