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Five years ago, A was thrice as old as B...

Five years ago, A was thrice as old as B and 10 years later, A shall be twice as old as B. What are the present ages of A and B?

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The correct Answer is:
50 years and 20 years
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NAGEEN PRAKASHAN-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3e
  1. A father is three times as old as his son. After twelve years, his ...

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  2. Five years ago, A was thrice as old as B and 10 years later, A shall b...

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  3. If twice the sons age in years is added to the fathers age, the sum ...

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  4. A and B are friends and their ages differ by 2 years. As father D is t...

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  5. The present age of a father is equal to the sum of the ages of his 5 c...

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  6. Eight years ago Mohan's age was (3)/(4) of Sohan's. Four years hence M...

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  7. Sum of two numbers is 35 and their difference is 13. Find the numbers.

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  8. Find two numbers, which differ by 7, such that twice the greater added...

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  9. There are two numbers. Four times the first exceeds seven times the se...

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  10. If 1 is added to each of the two given numbers then their ratio is 1 :...

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  11. If three times the larger of the two numbers is divided by the smaller...

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  12. The sum of the digits of a two digit number is 10. If 18 is subtracted...

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  13. In a two digit number, the units digit is twice the tens digit. If 27 ...

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  14. A two digit number is obtained by either multiplying the sum of the di...

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  15. Seven times a two-digit number is equal to four times the number ob...

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  16. A fraction becomes 4/5, if 1 is added to both numerator and denomin...

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  17. A fraction is such that if the numerator is multiplied by 3 and the ...

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  18. If the denominator of a fraction is added to its numerator and the nu...

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  19. 4 chairs and 3 tables cost Rs 2100 and 5 chairs and 2 tables cost R...

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  20. The cost of 3 oranges and 12 apples is Rs. 9.60 and the cost of 5 oran...

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