Mathematics Past Questions and Answers

Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number

Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135°

The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone

Increase 135 in the ratio 3:5

Given that x² + y² + k = 60 and x = \(\sqrt{10}\) when y = , find the value of k.