Question
The ages of a group of 10 people are as follows: 25,
28, 30, 32, 35, 35, 38, 40, 42, and 45. Calculate the mean and median age of this group.Solution
Mean (Average) = (Sum of all ages) / (Number of people) Mean = (25 + 28 + 30 + 32 + 35 + 35 + 38 + 40 + 42 + 45) / 10 Mean = 350 / 10 Mean = 35 To calculate the median, first, arrange the ages in ascending order: 25, 28, 30, 32, 35, 35, 38, 40, 42, 45. Since there are 10 numbers, the median will be the average of the 5th and 6th numbers, which are both 35. Median = (35 + 35) / 2 Median = 35
Find the difference of day had the highest number of books and that of lowest number of books sold?
20.57 ×28.04 ÷ ? + 254 = 429.06
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
`root(3)(725.87)` `-:` `sqrt(81.033)` Â + 49.88% of 809.77 = ? - (14.78Â `xx` Â 52.2)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
? 3 + 95.06 X 39.87 ÷ 5.03 = 1271.89
(284.85 ÷ 15.09) x 2.22 + 51.17 = 157.69 - ?
15.1 + 3.97 – 9.07 × 1.96 = √?Â
16(17/23)Â + 11(15/46)Â - 15(17/25) =? - 19(13/23)
Solve the following expression and calculate the approximate value.
1727.8 + 2196.75 + 3 × 11.8 × 12.9 × 24.75
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