logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Average Comments

  • Question
  • A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year?


  • Options
  • A. Rs. 7.98
  • B. Rs. 8
  • C. Rs. 8.50
  • D. Rs. 9

  • Correct Answer
  • Rs. 7.98 

    Explanation
    Total quantity of petrol
    consumed in 3 years
    = 4000 + 4000 + 4000  litres
    7.50 8 8.50
    = 4000 2 + 1 + 2  litres
    15 8 17
    = 76700  litres
    51

    Total amount spent = Rs. (3 x 4000) = Rs. 12000.

    ∴ Average cost = Rs. 12000 x 51 = Rs. 6120   = Rs. 7.98
    76700 767

  • Average problems


    Search Results


    • 1. A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?

    • Options
    • A. Rs. 4991
    • B. Rs. 5991
    • C. Rs. 6001
    • D. Rs. 6991
    • Discuss
    • 2. In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

    • Options
    • A. 6.25
    • B. 6.5
    • C. 6.75
    • D. 7
    • Discuss
    • 3. The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?

    • Options
    • A. 0
    • B. 1
    • C. 10
    • D. 19
    • Discuss
    • 4. The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is:

    • Options
    • A. 3500
    • B. 4000
    • C. 4050
    • D. 5000
    • Discuss
    • 5. The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is:

    • Options
    • A. 17 kg
    • B. 20 kg
    • C. 26 kg
    • D. 31 kg
    • Discuss
    • 6. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

    • Options
    • A. 47.55 kg
    • B. 48 kg
    • C. 48.55 kg
    • D. 49.25 kg
    • Discuss
    • 7. A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:

    • Options
    • A. 250
    • B. 276
    • C. 280
    • D. 285
    • Discuss
    • 8. The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?

    • Options
    • A. 76 kg
    • B. 76.5 kg
    • C. 85 kg
    • D. Data inadequate
    • E. None of these
    • Discuss
    • 9. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:

    • Options
    • A. 35 years
    • B. 40 years
    • C. 50 years
    • D. None of these
    • Discuss
    • 10. A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is:

    • Options
    • A. 10
    • B. 20
    • C. 40
    • D. 73
    • Discuss


    Comments

    There are no comments.

Enter a new Comment