1. What is the speed of the car?I. The speed of a car is 10 (km/hr) more than that of a motorcycle. II. The motorcycle takes 2 hr more than the car to cover 100 km.





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  • By: anil on 05 May 2019 02.32 am
    Let the speed of the car be x. Using both the statements, we get a quadratic equation in x. This equation will have 2 roots, one positive root and one negative root. So, we have to consider only the positive root. The question can, therefore, be answered by using both the statements together.
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