Dahlai walks from home to school at 2km/h. After school she jogs back home at 6km/h and saves 15 mins. How far away is her house from school? I don't even know how to approach this, all help is appreciated.
Hello, xXplosionZz!
Recall the formula: .
Dahlai walks from home to school at 2km/hr.
After school she jogs back home at 6km/hr and saves 15 mins.
How far away is her house from school?
She walks km at 2 km/hr.
. . This takes hours.
She jogs km at 6 km/hr.
. . This takes hours.
Her jogging time is hour less than her walking time.
. . The equation is: .
Got it?