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Home Aptitude Profit and Loss See What Others Are Saying!
  • Question
  • A shopkeeper sells transistors at 15% above its cost price. If he had bought it at 5% more than what he paid for it and sold it for ? 6 more, he would have gained 10%. The cost price of the transistor is?


  • Options
  • A. ? 800
  • B. ? 1000
  • C. ? 1200
  • D. ? 1400

  • Correct Answer
  • ? 1200 

    Explanation

    Let cost price of transistor = ? N
    According to the question,
    CP of transistor = (N x 105)/100
    And SP of transistor = (115 x N)/100 + 6
    ? Profit percentage = (SP - CP)/CP x 100
    ? 10 = [[(115N/100) + 6 - (105N/100)] / (105N/100)] x 100
    ? 10 = [(10N + 600) x 100]/ 105N
    ? 105N = 100N + 6000
    ? 5N = 6000
    ? N= ? 1200


  • More questions

    • 1. 
      2508 ÷ 15.02 +? x 11 = 200

    • Options
    • A. 13
    • B. 8
    • C. 3
    • D. 4
    • Discuss
    • 2. 
      When the speed of a boat in still water is 4 km/h and the rate of stream is 2 km/h, find upstream speed of the boat.?

    • Options
    • A. 6 km/h
    • B. 5 km/h
    • C. 2 km/h
    • D. 7 km/h
    • Discuss
    • 3. 
      The sum of three consecutive odd number is 57. The middle one is?

    • Options
    • A. 19
    • B. 21
    • C. 23
    • D. 17
    • Discuss
    • 4. 
      Without stoppages, the speed of a train is 150 km/h and with stoppages, it is 100 km/h. How many minutes does the train stop?

    • Options
    • A. 20
    • B. 15
    • C. 25
    • D. 45
    • Discuss
    • 5. 
      Raman's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 yr. What is the difference between the present ages of Raman's daughter and Raman's mother?

    • Options
    • A. 45 yr
    • B. 40 yr
    • C. 50 yr
    • D. Connot be determined
    • Discuss
    • 6. 
      A boat running upstream takes 528 min to cover a certain distance, while it takes 240 min to cover the same distance running downstream. What is the ratio between the speed of the water current, respectively?

    • Options
    • A. 2 : 1
    • B. 3 : 2
    • C. 8 : 3
    • D. Couldn't be determined
    • Discuss
    • 7. 
      Ten years ago A was half of B in age. If the ratio of their present ages is 3 : 4. What will be the total of their present ages?

    • Options
    • A. 8 years
    • B. 20 years
    • C. 35 years
    • D. 45 years
    • Discuss
    • 8. 
      In ten years, A will be twice as old as B was 10 years ago. If A is now 9 years older then B. Find the present age of B?

    • Options
    • A. 39 year
    • B. 40 year
    • C. 36 year
    • D. 49 year
    • Discuss
    • 9. 
      Mahatma Gandhi was born on October 2, 1869. The day of the week was:

    • Options
    • A. Sunday
    • B. Monday
    • C. Saturday
    • D. Friday
    • Discuss
    • 10. 
      Change 75/100 into decimal number.

    • Options
    • A. 0.075
    • B. 0.75
    • C. 0.0075
    • D. 7.5
    • Discuss


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