Answer:
send me again I can't understand question
Answer: option B and D (1000m/km and minute/60 second)
In this question, we have two unit that needed to be converted, kilometer/minutes into meter/second.
First, we need to convert km into the meter. One kilometer is equal to 1000 meter. To change kilometer into the meter, the unit used for multiplication should be 1000m/km which is option B.
Then we need to convert minute into the second. One minute is equal to 60 seconds. To change "/minute" into "/second" the multiplication unit should be minute/60 second which was option D
X + Y = 35 - 1
X + Y = 65 - 2
2x= 100
x= 50
50-y= 65
y= 50-65
y= -15
total kilometers = kilometers by train + kilometers by car
265 = 80 + kilometers by car
kilometers = rate * time = 90* h
265 = 80 + 90*h
