NumericalModerate2 marks
8(iii)
Mr. and Mrs. Das were traveling by car from Delhi to Kasauli for a holiday. Distance between Delhi and Kasauli is approximately 350 km (via NH 152D). Due to heavy rain they had to slow down. The average speed of the car was reduced by 20 km/hr and time of the journey increased by 2 hours. Find:
with the reduced speed, the number of hours they took to reach their destination.
Topic: Quadratic word problems
Previous-year question practice database
Answer
Exam answer
7 hours.
Explanation
Reduced speed=50 km/h; time=350/50=7 h.
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