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If 21 is added to the number first numbe...

If 21 is added to the number first number of two given numbers, it becomes twice the second number and if 12 is added to the second number, it becomes twice the first number. Find the numbers.

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The correct Answer is:
the required fractions are 15 and 18
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CALCUTTA BOOK HOUSE-LINEAR EQUATIONS IN REAL PROBLEMS-EXERCISE-5
  1. If 21 is added to the number first number of two given numbers, it bec...

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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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  5. The total price of 2 tables and 3 chairs is Rs. 1075. While the total ...

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  6. The present age of a father is twice that of his son , 14years ago, th...

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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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