Bunuel wrote:
If the speed of X meters per second is equivalent to the speed of Y kilometers per hour, what is Y in terms of X? (1 kilometer=1000 meters)
A. 15x/18
B. 6x/5
C. 18x/5
D. 60x
E. 3600000x
X meters per second -->
--> 3,600X meters per hour (as there are 3,600 seconds in one hour);
--> 3,600X/1,000=18X/5 kilometers per hour (as there are 1,000 meters in one kilometer).
Answer:C.
OR: if you are not comfortable with above manipulations with variable X then you can assume x to be equal
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