Question

Linear Equation

Mahesh made a journey Of 146km.He drives for 2 hours in day light and then for 1½ hours in darkness at an average speed reduced by 10km/h from the day light speed.Find his speeds in day light and darkness
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Answer 1

Answer:

90.6km/h

Step-by-step explanation:

distance distance covered in daylight=146km

time taken to cover the distance=2hrs  

speed =distance÷time  

speed =146÷2  

=73km/h  

distance cover in dark light=146-10  

=136km  

speed taken to cover the distance=1hole1/2=3/2hrs  

speed =136÷3/2=90.6km/h