Question

Marie 2,480 windows Marie washed 4 times as many windows as Elizabeth Elizabeth washed the same number of windows each day over the 5 days How many windows did Elizabeth wash each day

Answer 1

Elizabeth washes 99 windows each day.

Explanation:

Given:

Total number of windows (N) = 2480

Marie washes windows = 4 times Elizabeth washes.

Elizabeth washes same number of windows for 5 days.

Let the number of windows washed by Elizabeth each day = 'x'.

Therefore, over the 5 days, the windows washed by Elizabeth =
`5x`

Now, as per question:

Marie washes windows = 4 times Elizabeth washes.

So, number of windows washed by Marie =
`4(5x)=20x`

Now, total number of windows = Windows washed by Marie + Windows washed by Elizabeth

So,

`2480=20x+5x\\\\2480=25x\\\\x=(2480)/(25)\approx99`

Therefore, Elizabeth washes 99 windows each day.