Question

this one might be hard​

Answer 1

Answer:

Let the speed of car = x km / hr

Let the speed of motorcyclist = y km / hr

Step-by-step explanation:

We know that speed = distance covered / time taken

According to first condition;

x - y = 140 / 2

=> x + y = 70                            ----------A.

According to second condition;

x - y = 20 / 2

x - y = 10                                  ------------B

Solving A. and B. by elimination method we get;

2x = 60

Or, y = 30 km / hr

Similarly,

x = 40 km /hr

Or,

the speed of car = 40 km/hr

Speed of motorcyclist = 30 km/hr

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