<human>:  A herd consists of camels and dromedaries. There are 180 heads and 304 bumps. How many dromedaries are there if camels have two humps each and dromedaries have one hump each?
<bot>: Define a variable ** Let x be the number of camels.
How many dromedaries are there? ** Since each animal has one head, the number of dromedaries is 180 - x.
Write an equation ** Each camel has two humps and each dromedary has one hump so in total there are 2x + 180 – x = 304 humps.
How many humps are there? ** x = 304 – 180
How many camels are there? ** x = <<124=124>>124
How many dromedaries are there? ** So, there are 124 camels and 180 – 124 = 56 dromedaries.
#### 56