Mathematics
If 69.5 is the mean of 72, 70, x, 62, 50, 71, 90, 64, 58 and 82 : find the value of x.
Related Questions
The mean of the number 6, y, 7, x and 14 is 8. Express y in terms of x.
The ages of 40 students are given in the following table :
Age (in years) Frequency 12 2 13 4 14 6 15 9 16 8 17 7 18 4 Find the arithmetic mean.
The following table gives the heights of plants in centimeter. If the mean height of plants is 60.95 cm; find the value of 'f'.
Height (cm) No. of plants 50 2 55 4 58 10 60 f 65 5 70 4 71 3 From the data, given below, calculate the mean wage, correct to the nearest rupee.
Category Wages in ₹/day No. of workers A 50 2 B 60 4 C 70 8 D 80 12 E 90 10 F 100 6 (i) If the number of workers in each category is doubled, what would be the new mean wage ?
(ii) If the wages per day in each category are increased by 60%; what is the new mean wage ?
(iii) If the number of workers in each category is doubled and the wages per day per worker are reduced by 40%; what would be the new mean wage ?