Mr Dan's nephew is 36cm tall. His niece is 1 and three quarters times as tall. How tall is she?

Question

I don't know the method of doing it and I don't know how to get the answer.

Answer 1

Let X be his niece's height then

 

X = 7/4 * 36

 

= 63 cm

 

or 5 ft 3 inches tall.

 

the most important part is to recognize 7/4 is an improper form of 1 3/4.