A square tile has side 30cm. How many of these tiles will...
A square tile has side 30cm. How many of these tiles will cover a rectangular floor of length 7.2m and width 4.2m?
336
420
576
720
Correct answer is A
Total floor area = 720 x 420
Area of one tile = 30 x 30
No. of tile required = 720×42030×30
= 24 x 14
= 336 tiles
The variance of the scores 1, 2, 3, 4, 5 is ...
If (25)x - 1 = 64(52)6, then x has the value...
Given that 2x + y = 7 and 3x - 2y = 3, by how much is 7x greater than 10? ...
Given that P∝1√r and p = 3 when r = 16, find the value of r when p = 3/2...
A chord XY of a circle with centre O and radius 5.32cm has ∠XOY = 140°. What is the length o...