Divide the L.C.M of 48, 64 and 80 by their H.C.F
20
30
48
60
Correct answer is D
No explanation has been provided for this answer.
\(\frac{15}{17}\)
\(\frac{9}{17}\)
\(\frac{8}{15}\)
\(\frac{12}{17}\)
Correct answer is A
Given length of the room = 12m; breadth = 9m and height = 8m.
The room is a cuboid in shape, therefore the length of the diagonal = \(\sqrt{l^2 + b^2 + h^2}\)
= \(\sqrt{12^2 + 9^2 + 8^2}\)
=\(\sqrt{289}\)
= 17m.
The diagonal makes an angle with the diagonal of the floor: \(\sqrt{12^2 + 9^2}\)
= \(\sqrt{225}\)
= 15m
The cosine of the angle that the diagonal makes with the floor (\(\theta\)) = \(\frac{15}{17}\).
N1,080.00
N2,400.00
N3,000.00
N3,600.00
Correct answer is B
No explanation has been provided for this answer.
\(\frac{0.00256 \times 0.0064}{0.025 \times 0.08}\)
8.8 x 10\(^{-1}\)
8.8 x 10\(^{-2}\)
8.2 x 10\(^{-3}\)
8.8 x 10\(^{3}\)
Correct answer is C
No explanation has been provided for this answer.
3
4
5
6
Correct answer is A
In terms of distance, a circle has a total distance or perimeter of 2πr or πd
Where r is radius and d is the diameter
So perimeter = \(\frac{22}{7}\) x 100
= 314.2857m
To cover a distance of 1000m, he is going to round the circular track for \(\frac{1000}{314.2857}\) = 3.18
\(\approxeq\) 3 (to the nearest whole number)