Question

A teacher gives pens and pencils to elementary students at an equal rate.

Pencils Pens
13 78
18 A
22 132
B 162


Determine the missing value for the letter B.
24
26
27
52

Answer 1

answer is 27

Explanation:

Answer 2

Explanation:

Since Pens/Pencils is a constant rate (equal rate), we find that

`(13)/(78) = (1)/(6)` and
`(22)/(132) = (1)/(6)`. So 1/6 is that rate

We have B / 162 = 1/6
B = 162 / 6
B = 27

So the answer is 27