a man Travels 40 kilometre partly by train and partly because if he covers 240 km by train and the rest by the bus it takes 6 hours but if we travel 180 km from friend and restore from the bus it takes 15 minutes find the speed of the train that of the car
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Step-by-step explanation:
Let, the speed of train be x & speed of bus be y.
Speed=
Time
Distance
or T=
S
D
4=
x
60
+
y
240
………….(1)
4 hr 10 min=
x
100
+
y
200
………..(2)
(1)×5
20=
x
300
+
y
240×S
(2)×3
62
25×3
=
x
300
+
y
600
20−
2
25
=
y
1200
−
y
600
2
15
=
y
600
y=80 km/ph
4=
x
60
+
80
240
x=60 km/ph.
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