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Home Aptitude Ratio and Proportion See What Others Are Saying!
  • Question
  • If a + b : b + c : c + a = 6 : 7 : 8 and a + b + c = 14, then find c?


  • Options
  • A. 6
  • B. 7
  • C. 8
  • D. 10

  • Correct Answer
  • 10 

    Explanation

    Let a + b = 6k, b + c = 7k, c + a = 8k ...(i)
    and a + b + c = 14 ...(ii)

    From Eq. (i),
    a + b + b + c + c + a = 6K + 7K + 8K
    ? 2(a + b + c) = 21K
    ? 2 x 14 = 21K
    ? K = 28/21 = 4/3

    ? a + b 6k = = 6 x 4/32 = 8
    Subtracting Eq. (iii) from Eq. (ii), we get
    (a + b + c) - (a + b) = 14 - 8 = 6


  • More questions

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      The value of 47 / 10000 is?

    • Options
    • A. .0047
    • B. .0470
    • C. .00047
    • D. .000047
    • Discuss
    • 2. If 4x = 18y, then the value of ( x/y - 1) is

    • Options
    • A. 1 3
    • B. 7 2
    • C. 2 3
    • D. 3 2
    • Discuss
    • 3. 
      If the price of 23 toys is Rs. 276, then what will the price (Rs.) of 12 toys?

    • Options
    • A. 144
    • B. 158
    • C. 159
    • D. 166
    • Discuss
    • 4. 
      .02 =(......?.....)%

    • Options
    • A. 20
    • B. 2
    • C. .02
    • D. .2
    • Discuss
    • 5. 
      If 36 men can do a piece of work in 25 hours, in how many hours will 15 men do it?

    • Options
    • A. 45
    • B. 55
    • C. 60
    • D. 72
    • Discuss
    • 6. 
      2?63 / 11 =233

    • Options
    • A. 4
    • B. 3
    • C. 6
    • D. 5
    • Discuss
    • 7. 
      When 121012 is divided by 12, the remainder is

    • Options
    • A. 0
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 8. 
      Aarti can do a piece of work in 6 days. In how many days will she complete three time of work of same type?

    • Options
    • A. 18 days
    • B. 21 days
    • C. 3 days
    • D. 6 days
    • Discuss
    • 9. 
      750.0003 ÷ 19.999 =?

    • Options
    • A. 49
    • B. 18
    • C. 22
    • D. 38
    • Discuss
    • 10. 
      105, 85, 60, 30, 0, - 45, - 90?

    • Options
    • A. 0
    • B. 85
    • C. -45
    • D. 60
    • Discuss


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