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Home Aptitude Ratio and Proportion See What Others Are Saying!
  • Question
  • Brother A and B had some saving in the ration 4 : 5. They decided to buy a gift for their sister, sharing the cost in the ratio 3 : 4, After they bought, A spent two- third of his amount, while B is left with ? 146, Then the value of the gift is?


  • Options
  • A. ? 70
  • B. ? 105
  • C. ? 140
  • D. ? 175

  • Correct Answer
  • ? 140 

    Explanation

    let the saving of A and B are 4M , 5M and the share in cost of gift are 3N, 4N respectively
    According to the question
    for A, 4M - 3N = (2/3) x 4M
    ? M = 9N/4.............(i)
    For B 5M - 4N = 145
    ? 5 x (9N/4) - 4N = 145 [by Eq. (i)]
    ? N = 20
    ? Cost of gift = 3N + 4N = 7 x 20 = ? 140


  • More questions

    • 1. 
      A number increased to 137 1/ 2% gives 33. The number is?

    • Options
    • A. 22
    • B. 24
    • C. 25
    • D. 27
    • Discuss
    • 2. 
      In a college election, a candidates secure 62% of the votes and is elected by majority of 144 votes. The total number of votes polled is?

    • Options
    • A. 600
    • B. 800
    • C. 925
    • D. 1200
    • Discuss
    • 3. 
      The population of a town is 8000. It increases by 10% during first year and by 20% during the second year. The population after 2 years will be?

    • Options
    • A. 10400
    • B. 10560
    • C. 10620
    • D. None of these
    • Discuss
    • 4. 
      A papaya was planted 2 years ago. It increases at the rate of 20% every year. If at present, the height of the tree is 540 cm, what was it when the tree was planted?

    • Options
    • A. 324 cms
    • B. 375 cms
    • C. 400 cms
    • D. 432 cms
    • Discuss
    • 5. 
      P is six times as large as q. The per cent that q is less than p,is?

    • Options
    • A. 831/3
    • B. 162/3
    • C. 90
    • D. 60
    • Discuss
    • 6. 
      A man spends 75% of his income. This income is increased by 20% and he increased his expenditure by 10%. His savings are increased by?

    • Options
    • A. 10%
    • B. 25%
    • C. 371/2%
    • D. 50%
    • Discuss
    • 7. 
      The boys and girls in a collage are in ratio 3 : 2. If 20% of the boys and 25% of the girls are adults, the percentage of students who are not adults is?

    • Options
    • A. 58%
    • B. 67.5%
    • C. 78%
    • D. 82.5%
    • Discuss
    • 8. 
      72% of the students of a certain class took Biology and 44% took Mathematics. If each student took Biology or Mathematics and 40 took both. The total number of students in the class was?

    • Options
    • A. 200
    • B. 240
    • C. 250
    • D. 320
    • Discuss
    • 9. 
      A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in the calculation?

    • Options
    • A. 82%
    • B. 86%
    • C. 84%
    • D. 89%
    • Discuss
    • 10. 
      In a survey, it was found that 80% of those surveyed owned a car while 60% of those surveyed owned a mobile phone. If 55% owned both a car and a mobile phone, what percent of those surveyed owned a car or a mobile phone or both?

    • Options
    • A. 65%
    • B. 80%
    • C. 85%
    • D. 97.5%
    • Discuss


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