Question

Mary had 75 filers to post around town. Lest week, she posted 1/3 of them. This week, she posted 3/5 of the remaining filers. How many filers had she still not posted

Answer 1

20.

Explanation:

According to the word problem, Mary had 75 fliers and posted 1/3 of them last week.

`75 *(1)/(3) =(75)/(3)`

`(75)/(3) =25.`

Therefore, Mary posted 25 of them last week.

`75-25 =50`

Mary has 50 fliers that she has not posted.

Then, this week, Mary posted 3/5 of the remaining fliers.

`50*(3)/(5) =(150)/(5)`

`(150)/(5) =30.`

Therefore, Mary posted 30 of the remaining fliers this week.

`50-30=20.`

Therefore, Mary has 20 fliers that she still has not posted.

Answer 2

20

Explanation:

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