Question

The blue whale is the largest animal living on the earth. The average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). A whale’s head is 1⁄3 of the length of its body. A new baby whale is 1⁄4the length of a grown whale. The average man is 1⁄17 the length of a blue whale, and 1⁄1,818its weight. A human baby measures 1⁄4 of the length of an adult. Calculate the following information: How long is a whale’s head? How long is a new baby whale? How tall is the average man? How much does the average man weigh? How tall is the average human baby?

Answer 1

The average blue whale measures 100 feet(30 meters) long and weighs 300,000 pounds(136,000 kilograms).

• A whale’s head is $\frac{1}{3}$ of the length of its body. So, the length of a whale's head $=(\frac{1}{3}*100)feet = 33.33 feet$ or $(\frac{1}{3}*30)meter= 10 meter$

• A new baby whale is $\frac{1}{4}$ length of a grown whale. So, the length of a new baby whale $=(\frac{1}{4}*100)feet = 25 feet$ or $(\frac{1}{4}*30)meter = 7.5 meter$

• The average man is $\frac{1}{17}$ the length of a blue whale. So, the height of the average man $=(\frac{1}{17}*100)feet = 5.88 feet$ or $(\frac{1}{17}*30)meter =1.76 meter$

• The average man is $\frac{1}{1818}$ the weight of a blue whale. So,  the average man weighs $= (\frac{1}{1818}*300000)pounds= 165.02 pounds$ or $= (\frac{1}{1818}*136000)kilograms= 74.81 kilograms$

• A human baby measures $\frac{1}{4}$ of the length of an adult. So, the height of the average human baby $= (\frac{1}{4}*5.88)feet = 1.47 feet$ or $= (\frac{1}{4}*1.76)meter = 0.44 meter$