logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Average Comments

  • Question
  • The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third, fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7 : 8, then what is the temperature on the fifth day ?


  • Options
  • A. 62 degrees
  • B. 64 degrees
  • C. 65 degrees
  • D. 66 degrees

  • Correct Answer
  • 64 degrees 

    Explanation

    Sum of temperatures on 1st, 2nd, 3rd and 4th days = (58 * 4) = 232 degrees ... (1)

    Sum of temperatures on 2nd, 3rd, 4th and 5th days - (60 * 4) = 240 degrees  ....(2)

    Subtracting (1) From (2), we get :

    Temp, on 5th day  - Temp on 1st day  = 8 degrees.

    Let the temperatures on 1st and 5th days be 7x and 8x degrees respectively.

    Then, 8x - 7x = 8 or x = 8.

    Temperature on the 5th day = 8x = 64 degrees.


  • Average problems


    Search Results


    • 1. The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team ?

    • Options
    • A. 20 years
    • B. 21 years
    • C. 23 years
    • D. 25 years
    • Discuss
    • 2. The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have a one-year old child. The average age of the family now is:

    • Options
    • A. 25
    • B. 23
    • C. 19
    • D. 18
    • Discuss
    • 3. The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle number is :

    • Options
    • A. 10.5
    • B. 11.5
    • C. 12.5
    • D. 13.5
    • Discuss
    • 4. Out of 9 persons, 8 persons spent Rs. 30 each for their meals. The ninth one spent Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was :

    • Options
    • A. Rs. 292.50
    • B. Rs. 297.50
    • C. Rs. 298
    • D. Rs. 298.50
    • Discuss
    • 5. Of the four numbers, whose average is 60, the first is one-fourth of the sum of the last three. The first number is :

    • Options
    • A. 17
    • B. 29
    • C. 36
    • D. 48
    • Discuss
    • 6. The average monthly salary of the employees of a firm is Rs.60 out of the employees 12 officers get an average of Rs.400 per month and the rest an average of Rs. 56 per month , Find the number of emp

    • Options
    • A. 1030
    • B. 1032
    • C. 1062
    • D. 1060
    • Discuss
    • 7. The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is :

    • Options
    • A. 20
    • B. 21
    • C. 23
    • D. 24
    • Discuss
    • 8. A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points, the team scored was :

    • Options
    • A. 665
    • B. 657
    • C. 658
    • D. 678
    • Discuss
    • 9. A certain factory employed 600 men and 400 women and the average wager was Rs. 25.50 per day, If a woman got Rs. 5 less than a man, then what are their daily wages ?

    • Options
    • A. m:25.50 w:27.50
    • B. m:27.50 w:22.50
    • C. m:26.50 w:27.50
    • D. m: 24.50 w:26.50
    • Discuss
    • 10. 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


    Comments

    There are no comments.

Enter a new Comment