Ladi sold a car for N84,000 at a loss of 4%. How much did ladi buy the car?
80,500
80,640
87,360
87,500
Correct answer is C
p>The car was sold at 96% ---- N84,000.00
The price of the car is 100% ---- ?
4100×84,0001;
= 3360
Car's price = 3360 + 84000
= 87360
If yα1x2 and y=114 when x = 4, find the value of y when x=12
212
5
10
80
Correct answer is D
y \propto \frac{1}{x^2} \Rightarrow y = \frac{k}{x^2} \Rightarrow k = yx^2\\ k = 1\frac{1}{4} \times 4^2 \Rightarrow k=\frac{5}{4}\times \frac{16}{1}=20\\ ∴y = 20 \div \left(\frac{1}{2}\right)^2=20\times \frac{4}{1}=80
1.4ϖcm2
2.8ϖcm2
4.9ϖcm2
9.8ϖcm2
Correct answer is C
Area of a sector =\frac{\theta}{360}\times \pi r^2\\ \left(\frac{144}{360}\times \pi \times \frac{3.5}{1} \times 3.5\right)cm^2 = 4.9\pi cm^2