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10 years ago grandmother was thrice as o...

10 years ago grandmother was thrice as old as granddaughter, 15 year later grandmother will be twice as old as grand daughter. Find their present ages.

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The correct Answer is:
Daughter's present age 35 years
Grandmother's present age 85 years.
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NAND LAL PUBLICATION-LINEAR EQUATIONS IN ONE VARIABLE-SAMPLE PAPER FOR PRACTICE
  1. A number when divide by 6 gives the quotient 6. What is the number?

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  2. In a linear equation, highest power of the variable is .

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  3. The solution of the equation (4)/(m) = 16 is

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  4. Two different equation can never have same solution.

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  5. If (x)/(4) + 1 = (3)/(8) "then" (x)/(4) = (-5)/(8)

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  6. In the equation 7x - 8 = 10, transposing -8 to 10 gives 7x = 2.

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  7. If the age of a girl 6 years ago was 3x years then her present age is ...

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  8. If 5 times a number increased by 7 is 42, the number is

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  9. Which of the following is a linear equation in one variable.

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  10. Solution of the equation (4x)/(5) = x - 2

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  11. Which of the following has the coefficient of x as 1 in a linear equat...

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  12. Two-third the number is 5 and more than 7 the number is .

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  13. Sum of three consecutive multiples of 6 is 666

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  14. 6 times a number subtracted from 15 gives to 10

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  15. (3)/(5) th of a number is 4 more than half of a number.

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  16. What number must be added to each of the numbers 2, 6, 4, 9 so that th...

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  17. Distance between two places A and B is 860 km. Two cars start simultan...

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  18. Solve the equations (4m + 3)/(7) + 2 = (m + 5)/(2) and verify the resu...

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  19. Two supplementary angles differ by 50^(@). Find the measures of the tw...

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  20. 10 years ago grandmother was thrice as old as granddaughter, 15 year l...

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