Question

Michelle is three times as old as Fiona. Fiona is twice as old as Madeline. Madeline is five years old. How old is Michelle?

A. 10 Years
B. 10 Years
C. 15 Years
C. 30 Years

Answer 1

The correct answer is 30 Years.

Answer 2

Option D - 30 years

Explanation:

Given : Michelle is three times as old as Fiona. Fiona is twice as old as Madeline. Madeline is five years old.

To find : How old is Michelle?

Solution :

Let the Michelle is x years old.

The Fiona is y years old.

The Madeline is z years old.

According to question,

Madeline is five years old.

i.e. z=5

Fiona is twice as old as Madeline.

i.e.
`y=2z`

`y=2(5)`

`y=10`

Fiona is 10 years old.

Michelle is three times as old as Fiona.

i.e.
`x=3y`

`x=3(10)`

`x=30`

Michelle is 30 years old.

Therefore, Option D - 30 years old is correct.