Problema Solution
Each orc eats 4 pieces of bread while each goblin eats 3 pieces of bread. The army eats 265 pieces of bread. How many orcs are there?
Answer provided by our tutors
Assuming the army is made from orcs and goblins only we have:
x = the number of orcs, x is integer, x>0
y = the number of goblins, y is integer, y>0
4x + 3y = 265
x = (1/4)(-3y + 265)
One possible solution is for y = 15
x = (1/4)(-3*15+265)
x = 15 orcs
One solution is: 15 orcs and 15 goblins.