Trump takes 120 min more than Biden to cover a distance of 54 km. What is the
speed of trump if he covers the distance by 60 min less than Biden by doubling his
Answers
Given : Trump takes 120 min more than Biden to cover a distance of 54 km.
Trump covers the distance by 60 min less than Biden by doubling his speed
To Find : the speed of trump
Solution:
Distance = Speed * Time
Let say Biden Speed = x km/hr
Time taken by Biden to cover 54 km = 54/x hrs
Speed of Trump = y km/hr
Trump takes 120 min more than Biden to cover a distance of 54 km.
120 = 2 hrs
=> 54/ y = 54/x + 2 Eq1
he covers the distance by 60 min less than Biden by doubling his speed
60 mins = 1 hr
speed = 2y ( doubles )
=> 54/2y = 54/x - 1 Eq2
Eq1 - Eq2
=> 54/y - 54/2y = 3
=> 27/y = 3
=> y = 9 km/hr
Speed of Trumph = 9 km/hr
on doubling = 18 km/hr
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Step-by-step explanation:
Speed of trump= 9km/h
on doubling= 18km/h