Question

Medal if you can figure it out but you must explain how you got the answer:
A train travels 42 kilometers in 15 minutes. How far will the train travel in 3 hours at that speed?

A.
168 km

B.
336 km

C.
504 km

D.
672 km

Answer 1

the train travels 42 km each 15 minutes
can you calculate how many km it travels each 1 minute ?

Answer 2

I got 504 or C. was that correct? can you help me with another question it'll be the last one...
Anton's family drove 216 miles to the lake averaging 48 mi/hr. On the return trip home they averaged 54 mi/hr.

What was the total time that Anton's family spent driving to and from the lake?

A.
8 h

B.
8.5 h

C.
9 h

D.
9.5 h

Answer 3

for the going:
48 miles takes 1 hr
216 miles takes x hr

x = 216*1/48 = 4.5 hr

for the return:
54 miles takes 1 hr
216 miles take 216*1/54 = 4 hr
so the total time is 9.5 hr

Answer 4

oh wow thanks you didn't have to solve it for me but okay thank you @hoblos

Answer 5

any time :)