Question

An elephant weighs 1200 pounds, which is 3/4 the weight of a whale. A giraffe weighs 1/8 of the weight of the whale or 5/6 of the weight of 12 deer. How much does 12 deer weigh?

Answer 1

240 pounds

Explanation:

Let the variables:
e = lbs of elephant
w = lbs of whale

g = lbs of giraffe

d = lbs of 12 deer

e = 1200 and a whale is 3/4 of this weight so:
1200 / 4 = 400 which means 1/4 of the weight is 400
Multiply by 4 and get the total weight of 1600
w = 1600

g = 1600(1/8)
g = 200

200 is 5/6 of the weight of 12 deer so each 1/6 is 40
multiply 6 * 40
240