A quick solution would necessitate solving the fraction first. Note that 18/60=3/10=0.3
Now, we need to multiply 0.3 by 0.1254. Note that the options are not that close to each other. So even if we multiply 0.3 by 0.12, we will get closer to the answer. 0.3*0.12=0.036. Now we can choose the closest option and that is C.
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