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Three years ago, Poorvi was thrice as old as his sister Reena. After three years Poorvi will be twice as old as Reena. What is the present age of Reena?
- a)10 years
- b)6 years
- c)9 years
- d)15 years
- e)12 years
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Threeyears ago, Poorvi was thrice as old as his sister Reena. After th...
P – 3 = 3 *(R – 3) —(1)
P + 3 = 2 *(R + 3) —(2)
Solving eqn (1) and (2) R = 9
P + 3 = 2 *(R + 3) —(2)
Solving eqn (1) and (2) R = 9
Most Upvoted Answer
Threeyears ago, Poorvi was thrice as old as his sister Reena. After th...
Given information:
- Three years ago, Poorvi was thrice as old as his sister Reena.
- After three years, Poorvi will be twice as old as Reena.
To find: Present age of Reena
Let's assume Reena's present age to be 'x' years.
Three years ago:
- Poorvi's age = 3x (as Poorvi was thrice as old as Reena)
- Reena's age = x
After three years:
- Poorvi's age = 3x + 3 (as three years have passed)
- Reena's age = x + 3 (as three years have passed)
- Poorvi will be twice as old as Reena, so we can write the equation:
2(x + 3) = 3x + 3
Solving the equation:
2x + 6 = 3x + 3
x = 3
Therefore, Reena's present age is 3 years (option C).
- Three years ago, Poorvi was thrice as old as his sister Reena.
- After three years, Poorvi will be twice as old as Reena.
To find: Present age of Reena
Let's assume Reena's present age to be 'x' years.
Three years ago:
- Poorvi's age = 3x (as Poorvi was thrice as old as Reena)
- Reena's age = x
After three years:
- Poorvi's age = 3x + 3 (as three years have passed)
- Reena's age = x + 3 (as three years have passed)
- Poorvi will be twice as old as Reena, so we can write the equation:
2(x + 3) = 3x + 3
Solving the equation:
2x + 6 = 3x + 3
x = 3
Therefore, Reena's present age is 3 years (option C).
Community Answer
Threeyears ago, Poorvi was thrice as old as his sister Reena. After th...
P – 3 = 3 *(R – 3) —(1)
P + 3 = 2 *(R + 3) —(2)
Solving eqn (1) and (2) R = 9
P + 3 = 2 *(R + 3) —(2)
Solving eqn (1) and (2) R = 9
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Threeyears ago, Poorvi was thrice as old as his sister Reena. After three years Poorvi will betwice as old asReena. What is the present age of Reena?a)10 yearsb)6 yearsc)9 yearsd)15 yearse)12 yearsCorrect answer is option 'C'. Can you explain this answer?
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