Problema Solution
In Sean's fish tank, there are 6 times as many goldfish as guppies. There are a total of 21 fish in the tank. How many more goldfish are there than guppies?
Answer provided by our tutors
Let
x = the number of guppies
6x = the number of goldfish
We need to find 6x - x = 5x.
Also we know that the total number of fish is 21:
x + 6x = 21
........
click here to see the equation solved for x
........
x = 3
5x = 5*3 = 15
There are 15 more goldfish the guppies.