Increase 135 in the ratio 3:5
225
216
143
140
Correct answer is A
No explanation has been provided for this answer.
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
7cm
22cm
28cm
49cm
154cm
Correct answer is C
Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135°
271.5cm2
135.8cm2
96.0cm2
48.0cm2
33.9cm2
Correct answer is E
Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number
2
3
4
5
6
Correct answer is B
x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2?
2.5
6.25
6.52
7.5
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