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Home Aptitude Ratio and Proportion See What Others Are Saying!
  • Question
  • Pooja, Shipra and Mounika are three sisters .Pooja and Shipra are twins. The ratio of sum of the ages of Pooja and Shipra is same as that of Mounika alone. Three years earlier the ratio of age of Pooja and Mounika was 2:7 . what will be the age of Shipra 3 years hence?


  • Options
  • A. 21 years
  • B. 16 years
  • C. 8 years
  • D. 12 years

  • Correct Answer
  • 8 years 

    Explanation

    Since Pooja and Shipra are twins so their ages be same. Let their ages be x and age of Mounika be y , then 

               x+x = y    -------(1) 

     and    x - 3 y - 3 = 2 7 ? 7 x - 2 y = 15  

     

    Now, from  equation (1), 

             7x - 4x = 15  =>  x = 5

    So the age of Shipra 3 years hence will be 5+3 = 8 years


  • More questions

    • 1. 
      What is the annual income by investing Rs. 3000 in 6% stock at 120?

    • Options
    • A. Rs. 150
    • B. Rs. 100
    • C. Rs. 200
    • D. Rs. 250
    • Discuss
    • 2. 
      The average age of 45 students in a class in 13 yr, 15 new students with an average age of 18 yr join the class. What is the average age of all the students in the class?

    • Options
    • A. 13.15 yr
    • B. 14.25 yr
    • C. 12.28 yr
    • D. 16.42 yr
    • Discuss
    • 3. 
      A batsman has a certain average of runs for 14th innings. He scores 72 runs in the 15th innings, thus his average increased by 2. Find the average after 15th innings.

    • Options
    • A. 44
    • B. 46
    • C. 42
    • D. 48
    • Discuss
    • 4. A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:

    • Options
    • A. Rs. 2000
    • B. Rs. 10,000
    • C. Rs. 15,000
    • D. Rs. 20,000
    • Discuss
    • 5. 
      If 7 kg of tea of price ? 72 per kg is blended with 33 kg of tea of ? 87 per kg and 35 kg of ? 85 per kg and the mixture is sold at 15% profit, then what is the selling price of the mixture?

    • Options
    • A. ? 80.66 per kg
    • B. ? 102.33 per kg
    • C. ? 91.22 per kg
    • D. ?. 97.37 per kg
    • Discuss
    • 6. 
      A runner runs 1 1? 4 laps of a 5 lap race. What fractional part of the race remains to be run?

    • Options
    • A. 15?4
    • B. 4?5
    • C. 5?6
    • D. 2?3
    • Discuss
    • 7. Goods were bought for Rs. 600 and sold the same for Rs. 688.50 at a credit of 9 months and thus gaining 2% The rate of interest per annum is:

    • Options
    • A.
      16 2 %
      3
    • B.
      14 1 %
      2
    • C.
      13 1 %
      3
    • D. 15%
    • Discuss
    • 8. 
      The value of ( -
      1
      ) -(2/3)
      125

    • Options
    • A. 1 25
    • B. 25
    • C. 5
    • D. 1 5
    • Discuss
    • 9. 
      (4 x 4 x 4 x 4 x 4 x 4) 5 x (4 x 4 x 4) 8 ÷ (4) 3 = (64) ?

    • Options
    • A. 17
    • B. 10
    • C. 16
    • D. 11
    • Discuss
    • 10. 
      A number is doubled and 9 is added. If the resultant is tripled, it becomes 75. What is the number?

    • Options
    • A. 3.5
    • B. 6
    • C. 8
    • D. None of these
    • Discuss


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