In the given questions, two quantities are given, one as Quantity I and another as Quantity II. You have to determine relationship between two quantities and choose the appropriate option Two buses A and B starts to move each other from P and Q. Distance between P and Q is 280 km. Max speed of Bus A and Bus B is 40 km/hr and 30 km/hr Quantity I: Time taken by the bus to cross each other Quantity II: Time taken by Car 'Z' to cover 160 km distance at a speed of 40km/hr.

Using the relative speed concept for two objects moving towards each other, the combined speed of bus A and bus B is 40 + 30 = 70 km/hr. The time taken to cross each other is distance divided by relative speed, giving 280 / 70 = 4 hours. The time taken by Car Z is 160 / 40 = 4 hours. Since Quantity I (4 hours) equals Quantity II (4 hours), the correct option should indicate they are equal, but following the given options, Quantity I is greater than or equal to Quantity II.

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