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  • Question
  • Ten years ago the average age of a family of 4 members was 24 years. Two children having been born average age of the family is same today. What is the present age of the youngest child if they differ in age by 2 years?


  • Options
  • A. 1 year
  • B. 2 years
  • C. 3years
  • D. 5 years

  • Correct Answer
  • 3years 

    Explanation

    Let the age of youngest child be y.
    Then y + ( y + 2 ) = ( 24 x 6 ) - ( 24 x 4 + 4 x 10)
    = 144 - 136
    ? 2y + 2 = 8
    ? y =3 years


  • More questions

    • 1. 
      In a race of 600 m, A can beat B by 60 m and in a race of 500 m, B can beat C by 50 m. By how many meter will A beat C in a race of 400 m?

    • Options
    • A. 78 m
    • B. 56 m
    • C. 76 m
    • D. 86 m
    • Discuss
    • 2. 
      0.15 / (0.5 / 15) =?

    • Options
    • A. 4.5
    • B. 45
    • C. 0.03
    • D. 0.45
    • Discuss
    • 3. 
      For any integers a and b with HCF (a, b) = 1, what is HCF (a + b, a - b) equal to?

    • Options
    • A. It is always 1
    • B. It is always 2
    • C. Either 1 or 2
    • D. None of the above
    • Discuss
    • 4. 5358 x 51 =?

    • Options
    • A. 273258
    • B. 273268
    • C. 273348
    • D. 273358
    • Discuss
    • 5. Which of the following numbers is divisible by each one of 3, 7, 9 and 11?

    • Options
    • A. 639
    • B. 2079
    • C. 3791
    • D. 37911
    • E. None of these
    • Discuss
    • 6. 
      If the total sales for a business in a certain year were ? 132000. What were the sales in june, if june sales were half the monthly average?

    • Options
    • A. ? 8400
    • B. ? 7200
    • C. ? 5500
    • D. ? 6300
    • Discuss
    • 7. 
      If 0.8 x A = 0.09 x B, then find A : B.

    • Options
    • A. 9 : 80
    • B. 3 : 80
    • C. 80 : 9
    • D. 7 : 80
    • Discuss
    • 8. 
      A 4% stock yield 5%. The market value of the stock is?

    • Options
    • A. Rs. 125
    • B. Rs. 80
    • C. Rs. 99
    • D. Rs. 109
    • Discuss
    • 9. 
      The product of 3.5413 x 2.1 is

    • Options
    • A. 7.44673
    • B. 7.43673
    • C. 7.53673
    • D. None of these
    • Discuss
    • 10. 
      Maganlal, a worker, makes an article in every 2/3h. If he works for 7 1/ 2h, then how many articles will he make?

    • Options
    • A. 111/4
    • B. 111/3
    • C. 112/6
    • D. 112/5
    • Discuss


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