Subject
Quantitative Aptitude
Topic
Number
If a man travels p hours at an average rate of q miles per hour, and then r hours at an average rate of s miles per hour, what is his overall average rate of speed?
If a man travels p hours at an average rate of q miles per hour, and then r hours at an average rate of s miles per hour, what is his overall average rate of speed?
ক)
(pq+rs)/(p+r)খ)
(q+s)/2গ)
(q+s)/(p+r)ঘ)
(p/q)+(r/s)Explanation
Total miles traveled in p hours = p x q miles and Total miles traveled in r hours = r x s miles so, average rate of speed = total miles traveled / number of hours =[{(p x q)+(r x s)} / (p+r)]= (pq+rs)/(p+r)miles per hourRelated questions
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