Time from a distance and a speed

Difficulty Starter · Set 7qszhi

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1
A journey of 90 miles is driven at 15 miles per hour. How many hours does it take?
2
A journey of 60 miles is driven at 20 miles per hour. How many hours does it take?
3
A journey of 160 miles is driven at 20 miles per hour. How many hours does it take?
4
A journey of 160 miles is driven at 20 miles per hour. How many hours does it take?
5
A journey of 60 miles is driven at 15 miles per hour. How many hours does it take?
6
A journey of 180 miles is driven at 20 miles per hour. How many hours does it take?
7
A journey of 120 miles is driven at 20 miles per hour. How many hours does it take?
8
A journey of 90 miles is driven at 15 miles per hour. How many hours does it take?
9
A journey of 180 miles is driven at 20 miles per hour. How many hours does it take?
10
A journey of 105 miles is driven at 15 miles per hour. How many hours does it take?
11
A journey of 100 miles is driven at 20 miles per hour. How many hours does it take?
12
A journey of 45 miles is driven at 15 miles per hour. How many hours does it take?
13
A journey of 30 miles is driven at 15 miles per hour. How many hours does it take?
14
A journey of 90 miles is driven at 15 miles per hour. How many hours does it take?
15
A journey of 45 miles is driven at 15 miles per hour. How many hours does it take?
16
A journey of 135 miles is driven at 15 miles per hour. How many hours does it take?
17
A journey of 140 miles is driven at 20 miles per hour. How many hours does it take?
18
A journey of 105 miles is driven at 15 miles per hour. How many hours does it take?
19
A journey of 140 miles is driven at 20 miles per hour. How many hours does it take?
20
A journey of 75 miles is driven at 15 miles per hour. How many hours does it take?

What is in this set

The numbers in this set run from 15 to 180.
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; the hours are the distance shared out at so many miles in each of them.
Answers are a whole number.

Drawing 240 problems from this page produced 16 different ones, 7% — 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 7 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.