Question

Jamil traveled 210 miles, which is 70% of the total

distance to his grandfather's house. How many more
miles does he need to travel to reach his grandfather's
house?
A 90 miles
C 300 miles
B 147 miles
D 390 miles
Kate chose B as the correct answer. How did she get
that answer?
the par

Answer 1

Answer: The correct answer is B because 0.7x=210, x=300

Explanation:

210= 70% of the total distance to his grandfather's house, lets take that total distance for x.

So if:

210=0.7x

x=210/0.7

x=300