A man walks at a rate 10 mph. After every ten miles, he rest for 6 minutes. How much time does he take to walk 50 miles?
Solution
Correct Answer: Option D
since he talks a break after each installment,(until reaching the 50 mile point ;one after 10 miles ; one after 20 miles ; final one after 40 miles .The 50 th mile is his destination.)he takes 4 breaks ,and since each break lasts 6min The net time spent in the breaks is=4*6 min=24 mins
As the man walks 50 miles in 5 installments of 10 miles each, each installment should take him 1hr. hence,the total time for which he walked equals 5*1hr =5hr=5*60=300min. Hence,the total taken to reach the destination is =300+24=324mins
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