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  • Question
  • 5 yr ago, the average age of Rashmi and Surbhi was 20 yr, Now, the average age of Rashmi, Surbhi and Meeta is 30 yr. What will be the age of Meeta after 15 yr.?


  • Options
  • A. 35 yr
  • B. 55 yr
  • C. 39 yr
  • D. 67 yr

  • Correct Answer
  • 55 yr 

    Explanation

    Total age of Rashmi and Surbhi (5 yr ago) 20 x 2 = 40 yr.
    Total age of Rashmi and Surbhi (at present) = 40 + 5 + 5 = 50 yr.
    Total age of Rashmi, Surbhi and Meeta (at present) = 30 x 3 = 90 yr.
    ? Present age of Meeta = 90 - 50 = 40 yr.
    ? Age of meeta after 15yr. = 40 + 15 = 55 yr.


  • Average problems


    Search Results


    • 1. 
      The average weight of 4 men, A, B, C and D is 67 kg. The 5th man E is included and the average weight decreses by 2 kg. A is replaced by F. The weight of F is 4 kg more then E . Average weight decreases because of the replacement of A and now the average weight is 64 kg. Find the weight of A.

    • Options
    • A. 78 kg
    • B. 66 kg
    • C. 75 kg
    • D. 58 kg
    • Discuss
    • 2. 
      The arithmetical mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25%, a mean score of 31. The mean score of remaining 55% is

    • Options
    • A. 54.6%
    • B. 45%
    • C. 50'%
    • D. 51.4%
    • Discuss
    • 3. 
      A cricketer played 80 innings and scored an average of 99 runs. His score in the last inning is zero run. To have an average of 100 at the end, his score in the last innings should have been.

    • Options
    • A. 10 runs
    • B. 1 runs
    • C. 60 runs
    • D. 80 runs
    • Discuss
    • 4. 
      A has double the money of B and B has 50% more money then C. If average money of all the three persons is ? 12000, how money does A have?

    • Options
    • A. ? 211000/11
    • B. ? 315000/11
    • C. ? 216000/11
    • D. ? 316000/11
    • Discuss
    • 5. 
      The average age of two boys and their father is greater then average age of those two boys and their mother by 3 yr. The average age of the four is 19 yr. If the average age of the two boys be 5 1/ 2, then find the age of the father and mother.

    • Options
    • A. 37 yr and 28 yr
    • B. 47 yr and 38 yr
    • C. 50 yr and 41 yr
    • D. 35 yr and 32 yr
    • Discuss
    • 6. 
      The average weight of the students in four sections A, B, C and D is 60 kg. The average weight of the students of A, B, C and D individually are 45 kg, 50 kg, 72 kg and 80 kg, respectively. If the average weight of the students of section A and B together is 48 kg and that of B and C together is 60 kg. What is the ratio of the number of the students in sections A and D?

    • Options
    • A. 12 : 7
    • B. 4 : 3
    • C. 3 : 2
    • D. 8 : 5
    • Discuss
    • 7. 
      125.009 + 69.999 + 104.989 =?

    • Options
    • A. 420
    • B. 300
    • C. 285
    • D. 415
    • Discuss
    • 8. 
      16.003 x 27.998 - 209.010 =?

    • Options
    • A. 150
    • B. 200
    • C. 75
    • D. 240
    • Discuss
    • 9. 
      840.003 ÷ 23.999 =?

    • Options
    • A. 47
    • B. 8
    • C. 35
    • D. 18
    • Discuss
    • 10. 
      6885.009 - 419.999 - 94.989 =?

    • Options
    • A. 6650
    • B. 6830
    • C. 6370
    • D. 6200
    • Discuss


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