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The time required by a motor car to trav...

The time required by a motor car to travel a cartain distance is 3 hours less if its velocity be increased by 9 kilometres per hour. Again ,if the velocity be decreased by 6 kilometres per hour , then the time required by the car to travel the same distance is 3 hours more. Find the velocity of the car and the certain distance.

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The correct Answer is:
the velocity of motor car = 36 km/hour and the certain distance = 540 kilometres.
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CALCUTTA BOOK HOUSE-LINEAR EQUATIONS IN REAL PROBLEMS-EXERCISE-5
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  2. Starting at 10a.m., a man walks at the rate of 5km/hr. Starting 2 hour...

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  3. Satyababu went to the market taking Rs. 60 in his pocket to buy some ...

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  4. The denominator of a fraction is greater than numerator of it by 5 and...

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  7. The sum of weight of pradip and Prakash is 80 kg. Half of the weight o...

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  8. sum of the ages of a father and his son is 55 years. After 10 years , ...

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  9. The total cost of 3 kg mustered -oil and 2 kg coconut -oil is Rs. 104....

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  10. The sum of two digits of a number consisting of two digits is 7 . If 2...

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  11. At present , sum of the ages of a father and his son in 46 years . Whe...

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  12. If the length of a rectangle is increased by 3 metres and the breadth ...

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  13. Sum of the numerator and the denominator of a fraction is 13. If 4 is ...

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  14. A man travels a distance in 3 hours with a uniform velocity . If the d...

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  15. If the length of a a rectangular park be increased by 2 metres and the...

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  16. If 2 is subtracted from the numerator and 3 is added to the denominato...

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  17. The sum of the present ages of a mother and her daughter is 55 years. ...

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  18. A number of two digits is 3 more than 4 times of the sum of its digits...

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  19. 5 times of the greater one of two numbers is 2 more than 8 times of th...

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  20. If 2 is added to both the numerator and the denominator of a fraction ...

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  21. The total price of 9 horses and 7 cows is Rs. 3000 and at the same rat...

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