During a constant head permeameter test done on a course sand sample, $100$ mm in diameter, the following data were recorded.

$\backslash$table$[[$Distance between manometer tapping points,mm$,175,175,175,175],[$Difference in manometer levels,mm$,105,99,111,109],[$Quantity of water collected during $1,5$ minute,ml$,624,596,615,605],[$Temperature of water,$C,22,22,22,22]]$

Use the above data and determine the average value of $k.$

SOLUTION:

$\backslash$table$[[Q(m{m}^3),I(mm),A(m{m}^2),h(mm),t(sec),k(m\frac{m}{s})$