Quiz Discussion

The average temperature for the first four days of a week is 40.2° C and that of the last four days is 41.3° C. If the average temperature for the whole 40.6°C, then the temperature on the fourth day is-

Course Name: Quantitative Aptitude

  • 1] 40.8° C
  • 2] 41.3° C
  • 3] 41.8° C
  • 4] 38.5° C
Solution
No Solution Present Yet

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# Quiz
1
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The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number?

  • 1] 52
  • 2] 108
  • 3] 321
  • 4] Cannot be determined
  • 5] None of these
Solution
2
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A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in the month of June beginning with a Sunday?

  • 1] 276
  • 2] 280
  • 3] 285
  • 4] 250
Solution
3
Discuss

The frequency distribution data is given below. If the average age is 17 years, the value of m is

  • 1] 1
  • 2] 2
  • 3] 3
  • 4] 4
Solution
4
Discuss

The average of 11 players of a cricket team is decreased by 2 months when two of them aged 17 years and 20 years are replaced by two new players. The average age of the new players is-

  • 1] 17 years 1 month
  • 2] 17 years 7 months
  • 3] 17 years 11 months
  • 4] 18 years 3 months
Solution
5
Discuss

A train covers the first 16 km at a speed of 20 km per hour another 20 km at 40 km per hour and the last 10 km at 15 km per hour. Find the average speed for the entire journey.

 

  • 1]

    24 km

  • 2]

    26 km

  • 3]

    21 km

  • 4]

    km

Solution
6
Discuss

The average of 6 numbers is 7. The average of three numbers of them is 5. What will be the average of remaining numbers?

  • 1] 15
  • 2] 30
  • 3] 9
  • 4] 42
Solution
7
Discuss

The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :

  • 1] 312
  • 2] 222
  • 3] 213
  • 4] 303
Solution
8
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The average of five different positive numbers is 25. x is the decrease in the average when the smallest number among them is replaced by 0. What can be said about x?

  • 1] x is less than 5
  • 2] x is greater than 5
  • 3] x is equal to 5
  • 4] Cannot be determined
Solution
9
Discuss

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-

  • 1] 1 : 2
  • 2] 2 : 3
  • 3] 3 : 4
  • 4] 3 : 5
Solution
10
Discuss

The average of 11 results is 60. If the average of first six results is 58 and that of last six is 63, find the 6th result-

  • 1] 66
  • 2] 55
  • 3] 64
  • 4] 68
Solution
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