This question has been taken from Book:- ML aggarwal, Avichal publication, class10th, quadratic equation in one variable, chapter 5, exercise 5.5
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A school bus transported an excursion party to a picnic spot 150 km away. While returning, it was raining and the bus had to reduce its speed by 5 km/hr,
and it took one hour longer to make the return trip. Find the time taken to return.
Question no.31 , ML Aggarwal, chapter 5, exercise 5.5, quadratic equation in one variable, ICSE board,