Word problems about a rate

Difficulty Standard · Set zwexrl

Fill in what you can and press Check. Nothing you type is sent anywhere.

1
A machine fills 88 bottles in 11 minutes. How many does it fill in one minute?
2
A machine fills 77 bottles in 11 minutes. How many does it fill in one minute?
3
A machine fills 25 bottles in 5 minutes. How many does it fill in one minute?
4
A machine fills 36 bottles in 4 minutes. How many does it fill in one minute?
5
A machine fills 108 bottles in 12 minutes. How many does it fill in one minute?
6
A machine fills 14 bottles in 2 minutes. How many does it fill in one minute?
7
A machine fills 80 bottles in 10 minutes. How many does it fill in one minute?
8
A machine fills 18 bottles in 3 minutes. How many does it fill in one minute?
9
A machine fills 144 bottles in 12 minutes. How many does it fill in one minute?
10
A machine fills 28 bottles in 7 minutes. How many does it fill in one minute?
11
A machine fills 88 bottles in 11 minutes. How many does it fill in one minute?
12
A machine fills 72 bottles in 8 minutes. How many does it fill in one minute?
13
A machine fills 48 bottles in 4 minutes. How many does it fill in one minute?
14
A machine fills 10 bottles in 2 minutes. How many does it fill in one minute?
15
A machine fills 99 bottles in 11 minutes. How many does it fill in one minute?
16
A machine fills 45 bottles in 5 minutes. How many does it fill in one minute?
17
A machine fills 15 bottles in 3 minutes. How many does it fill in one minute?
18
A machine fills 110 bottles in 11 minutes. How many does it fill in one minute?
19
A machine fills 18 bottles in 6 minutes. How many does it fill in one minute?
20
A machine fills 54 bottles in 9 minutes. How many does it fill in one minute?

What is in this set

The numbers in this set run from 2 to 144.
A careful solution takes 2 written steps on average.
The mistake this set invites most often, in 100% of the problems: the two numbers were multiplied; a rate per minute divides the total by the minutes.
Answers are a whole number.

Drawing 240 problems from this page produced 97 different ones, 40% — so a sheet of 20 will come back to a problem you have seen — there are only so many sensible ones of this kind.

The same skill, harder or easier

We would put this in front of a grade 6 class. That is our judgement, not a standard, and it is printed here so you can disagree with it. Everything else we put in that year.