A bus leaves town x at 21.30 and at 0 to 100 the next day . calculate. the time taken for the journey. (b) the average speed of the bus given that the distace from town x too Y is 651 killometer 7th grade question please help full method plzzz plzzz plzz hurry
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Step-by-step explanation:
Let the distance travelled at 100 km/hr be x km.
Then, distance travelled at 50 km/hr is (170 - x) km.
Given, 100x+50(170−x)=2
⇒100x+2(170−x)=2⇒x+240−2x=200
⇒x=140km.
∴ Distance travelled at 50 km/hr =(170−140)km=30km
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