If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the v...
If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k
58
38
19
11
967
Correct answer is C
To calculate Mean: add up all the numbers ⇒ 3+5+8+k+14+17 = 47 + k then divide by how many numbers there are ⇒ 6 The Mean is already given as 11 11 = (47 + k) / 6 Cross multiply to solve for k : k = (6 X 11) - 47 k = 19
Find the total surface area of solid cone of radius 2√3cm and slanting side 4√3...
If the volume of a cube is (8 x 103)cm3, what is the surface area the cube?...
Marks 1 2 3 4 5 Frequency 2 2 8 4 4 The table above show the marks obtained in a given test...
If PN is perpendicular to QR, find the value of tan x. ...
P varies inversely as the square of W. When W = 4, P = 9. Find the value of P when W = 9...
The positions of two countries P and Q are (15°N, 12°E) and (65°N, 12°E) respectively. What is t...