Ramesh is traveling at 4 km per hour. The fast bicycle arrives at the railway station at 7 am. But at 5 km per hour. How fast is the distance between the house and the railway station?
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Step-by-step explanation:
and distance be x
and distance be xNow according to first condition, we have
and distance be xNow according to first condition, we have4x=t+ 60
=t+ 605
=t+ 605
=t+ 605
=t+ 605 And according to Second condition, we have. 5X =t− 60
10
10
10
10 60x=4t+20
10 60x=4t+2060x=5t−50
10 60x=4t+2060x=5t−50Subtracting equation 1 from 2, we have
10 60x=4t+2060x=5t−50Subtracting equation 1 from 2, we have0=t−70
10 60x=4t+2060x=5t−50Subtracting equation 1 from 2, we have0=t−70∴t=70
10 60x=4t+2060x=5t−50Subtracting equation 1 from 2, we have0=t−70∴t=70Putting the value of t we get x=5km
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