Question

A motor car travels 175 km distance from a place a to place b at a uniform speed 79 km per hour passes through all 10 green traffic signals due to heavy traffic it stops for 1 minute first Signal 3 minutes for second signal 5 minutes at III signal and so on stops for 19 minutes at 10th signal how much time it takes to reach at place be solved by suitable mathematical method

Answer 1

Answer:

250min

Step-by-step explanation:

Time spent at signal

10/2(1+19)=100min----1

Speed = distance/time  

Let time =x hr  

70=175/x=

X=175/70=2.5hr  

2.5hr =150min--2

Total time =150+100 min=250min