logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Average Comments

  • Question
  • 19 friends went to a restaurant for a combined weekend dinner party. 13 of them spent Rs. 79 each on their dinner and the rest spent Rs. 4 more than the average expenditure of all the 19. What was the total money spent by them?


  • Options
  • A. Rs. 1398.96
  • B. Rs. 1457.09
  • C. Rs. 1662.35
  • D. Rs. 1536.07

  • Correct Answer
  • Rs. 1536.07 

    Explanation

    Let average expenditure was Rs. R

    13 x 79 + 6x(R + 4) = 19R

    => R = Rs. 80.84

    Total money = 19 x 80.84 = Rs. 1536.07.


  • Average problems


    Search Results


    • 1. 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. 6.23
    • B. 7.98
    • C. 8.97
    • D. 9.89
    • Discuss
    • 2. The average weight of 45 passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the same stop. What is the new average weight of the bus?

    • Options
    • A. 54.21 kgs
    • B. 51.07 kgs
    • C. 52.66 kgs
    • D. 53.45 kgs
    • Discuss
    • 3. 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. 285
    • B. 290
    • C. 297
    • D. 305
    • Discuss
    • 4. The average temperature for Monday, Tuesday, Wednesday and Thursday was 48° . The average temperature for Tuesday, Wednesday, Thursday and Friday was 52°, If the temperature on Monday was 42°, then the temperature on Friday was (in degrees)

    • Options
    • A. 58
    • B. 56
    • C. 52
    • D. 50
    • Discuss
    • 5. The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

    • Options
    • A. 1:2
    • B. 2:3
    • C. 3:4
    • D. 3:5
    • Discuss
    • 6. If the average height of boys in a hall is 180 cm and that of girls is 150 cm. If the average height of the gathering is 165 cm, then find the number of girls present in the hall if the number of boys present in the hall are 78 ?

    • Options
    • A. 56
    • B. 64
    • C. 87
    • D. 78
    • Discuss
    • 7. The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers ?

    • Options
    • A. 3.6
    • B. 4.6
    • C. 6.5
    • D. 7.3
    • Discuss
    • 8. If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a2+b2+c23 is :

    • Options
    • A. M
    • B. 3 M^2
    • C. 2 (M/3)
    • D. M^2
    • Discuss
    • 9. In an NGO the daily average wages of 20 illiterate employees is decreased from Rs.25 to Rs.10, thus the average salary of all the literate and illiterate employees is decreased Rs.10 per day. The No. of educated employees working in the NGO is :

    • Options
    • A. 15
    • B. 20
    • C. 10
    • D. Data Insufficient
    • Discuss
    • 10. A man covers a journey from Meerut to Delhi by a car at an average speed of 40 km/hr. He returns back by scooter with an average speed 24 km/hr. Find his average speed during the whole journey?

    • Options
    • A. 32 kmph
    • B. 27 kmph
    • C. 30 kmph
    • D. 31 kmph
    • Discuss


    Comments

    There are no comments.

Enter a new Comment