Constructing Linear Equations

• Jul 2nd 2009, 08:00 PM
22upon7
Constructing Linear Equations
Can someone please explain how you work this sum out, preferrably step by step?

A shopkeeper buys a crate of eggs at \$1.50 per dozen. He buys another crate, containing 3 dozen more than the first crate, at \$2.00 per dozen. He sells all for \$2.50 a dozen and makes \$15 profit. How many dozens were there in each of the crates?
• Jul 2nd 2009, 08:20 PM
malaygoel
Quote:

Originally Posted by 22upon7
Can someone please explain how you work this sum out, preferrably step by step?

A shopkeeper buys a crate of eggs at \$1.50 per dozen. He buys another crate, containing 3 dozen more than the first crate, at \$2.00 per dozen. He sells all for \$2.50 a dozen and makes \$15 profit. How many dozens were there in each of the crates?

Let there be x dozens in the first crate

then dozens in the second crate=......

amount of purchase=dozen*buying price per dozen

selling amount=dozen*selling price per dozen