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A fast train takes 3 hours less than a slow train for a journey of 900 km. If the speed of slow train is 15 km/ hr, less than that the fast train, then the speeds of the two trains can be

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RD SHARMA-QUADRATIC EQUATIONS-All Questions
  1. A train travels a distance of 300 km at constant speed. If the spee...

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  2. The speed of a boat in still water is 15 km/hr. It can go 30 km ups...

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  3. A fast train takes 3 hours less than a slow train for a journey of 900...

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  4. A plane left 30 minutes late than its scheduled time and in order to r...

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  5. In a flight of 600 km, an aircraft was slowed down due to bad weath...

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  6. Two trains leave a railway station at the same time. The first train t...

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  7. A passenger train takes one hour less for a journey of 150 km if it...

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  8. The time taken by a person to cover 150 km was 2.5 hrs more than th...

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  9. An aeroplane takes 1 hour less for a journey of 1200 km if its spee...

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  10. A passenger train takes 2 hours less for a journey of 300 km if its...

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  11. A train covers a distance of 90 km at a uniform speed. Had the spee...

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  12. A train travels 360 km at a uniform speed. If the speed had been 5 ...

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  13. An express train takes 1 hour less than a passenger train to travel...

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  14. The sum of the ages of father and his son is 45 years . 5 years ago th...

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  15. Ashu is x years old while his mother Mrs Veena is x^2 years old. Fi...

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  16. The sum of the ages of a man and his son is 45 years. Five years ag...

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  17. The product of Shikha’s age five years ago and her age 8 years late...

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  18. The product of Ramu's age (in years) five years ago with his age (in ...

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  19. Determine their present ages. The sum of the ages of two friends is ...

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  20. The sum of the reciprocals of Rehmans ages, (in years) 3 years ago ...

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