Average || 26.03.2023

The average of sales of a furniture shop in the years 2015, 2016, 2017, 2018 is ₹16300, and that of in the years 2016, 2017, 2018, 2019 is ₹18450. If the sales in 2019 are ₹9200, then what are the sales in 2015?

The average age of a number of persons in a group was calculated as 35 years, which was 2.5 years more than the correct average as there was an error in recording the age of two persons as 38.5 years and 40 years instead of 29 years and 22 years respectively. The number of persons ¡n the group was?

The average of 50 numbers was calculated as 18. Three numbers 18, 32 and 65 were wrongly taken as 25, 29 and 56. What will be the correct average?

The numbers 24, 45, a, 35, 59, 83, 46, b, 29, 74 are serially numbered as they appear in the sequence. When each number is added to its serial number, then the average of the new numbers formed is 55. The average of the missing numbers (a and b) is:

The average of the ages of Sonu, Hari and Govind is 30 Years. If their ages are in the ratio of 4 : 5 : 6 respectively, then the difference between the ages of Sonu and Govind is

Average of 3 numbers is 12. First number is 6 less than the average of the other two. Third number is 6 more than the average of other two. What is the difference between first and third number?

An average temperature of a week was 30°C. If the average temperature of the first four days of the week was 31°C, then what was the average temperature for the rest of the days of the week?

The average of eleven numbers is 68. The average of the first four numbers is 78 and that of the next four numbers is 63. The 9^th number is two times the 11^th number and the 10^th number is 4 less than the 11^th number. What is the average of the 9^th and 11^th number?

The average of some numbers is 54.6. If 75% of the numbers are increased by 5.6 each, and the rest are decreased by 8.4 each, then what is the average of the numbers so obtained?