IXL | Solve word problems involving number patterns in tables

At the beginning of each week, Jason sets a goal for how much time he will spend reading. Then, he reads for the same amount of time each day during the week. This table shows his weekly goal and daily reading time in recent weeks.

Weekly reading time (minutes)	Daily reading time (minutes)
70	10
140	20
210	30
280	40

Jason spent a total of 420 minutes reading last week. How many minutes did he spend reading each day last week?

minutes

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Learn with an example

question

Ms. Zhang is an art teacher, and today she is setting out trays for a painting class. She puts the same number of paintbrushes on each tray. This table shows how many trays she uses for different numbers of paintbrushes.

Paintbrushes	Trays
5	1
10	2
15	3
20	4

Today, Ms. Zhang sets out a total of 60 paintbrushes. How many trays does Ms. Zhang set out today?

trays

solution

To find how many trays Ms. Zhang sets out today, look at the numbers in the table. Find the pattern between the number of paintbrushes and the number of trays.

Paintbrushes	Trays
5	1
10	2
15	3
20	4

The number of trays is always the number of paintbrushes divided by

Paintbrushes	Expression	Trays
5	5 ÷ 5	1
10	10 ÷ 5	2
15	15 ÷ 5	3
20	20 ÷ 5	4

So, to find how many trays Ms. Zhang sets out using 60 paintbrushes, divide 60 by 5.

Ms. Zhang sets out 12 trays today.

$Confetti$

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