Question

Which table represents the rate of irene building model trains?

Answer 1

"Table 1"

Explanation:

The number line given shows that in 1 week, Irene can build 9 model trains.

So the ratio is 1 : 9 [week : train]

Given the table with larger numbers, we have to see which table holds this ratio true.

Table 1:

5 week 45 trains = 45/5 = 9 trains per week

12 week 108 trains = 108/12 = 9 trains per week

26 week 234 trains = 234/26 = 9 trains per week

Table 1 is OK.

Table 2:

90 week 10 trains = 1/9 train per week

126 week 14 trains = 1/9 train per week

315 week 35 train = 1/9 train per week

Table 2 is certainly NOT OK.

Thus, Table 1 represents the correct rate of Irene.