Mathematics Past Questions and Answers

A school boy lying on the ground 30m away from the foot of a water tank towel observes that the angle of elevation of the top of the tank is 60\(^o\). Calculate the height of the tank.

A 60\(\sqrt{3m}\)
B 30\(\sqrt{3m}\)
C 20\(\sqrt{3m}\)
D 10\(\sqrt{3m}\)

Question 2362:

Find the simple interest rate percent annum at which N1000 accumulates to N1240 in 3 years.

A 6%
B 8%
C 10%
D 12%

Question 2363:

The pie chart shows the income of a civil servant in month. If his monthly income is N6,000. Find his monthly basic salary.

A N2,050
B N2600
C N3,100
D N3,450

Question 2364:

If x is positive real number, find the range of values for which \(\frac{1}{3}\)x + \(\frac{1}{2}\) > \(\frac{1}{4}\)x

A X > -\(\frac{1}{6}\)
B X > 0
C 0 < x < 6
D 0 < x <\(\frac{1}{6}\)

Question 2365:

Find the value of x if \(\frac{\sqrt{2}}{x + \sqrt{2}}\) = \(\frac{1}{x - \sqrt{2}}\)

A 3\(\sqrt{2}\) + 4
B 3\(\sqrt{2}\) - 4
C 3 - 2\(\sqrt{2}\)
D 4 + 2\(\sqrt{2}\)