How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
What is the range of their age?
14 years
20 years
30.5 years
31 years
Correct answer is B
Range = 30.5 - 10.5
= 20 years
p-q=1
q-p=0
p+q=1
p+q=0
Correct answer is C
No explanation has been provided for this answer.
\(\frac{2}{11}\)
\(\frac{5}{12}\)
\(\frac{8}{12}\)
\(\frac{7}{11}\)
Correct answer is A
Total number of balls = 5 + 3 + 4 = 12 balls
P(one ball is green and the other is blue) = P(first ball is green and second blue) + P(first ball is blue and the second green)
= \(\frac{3}{12} \times \frac{4}{11} + \frac{4}{12} \times \frac{3}{11}\)
= \(\frac{2}{11}\)
\(\frac{5}{33}\)
\(\frac{5}{36}\)
\(\frac{103}{132}\)
\(\frac{31}{36}\)
Correct answer is A
Total number of balls = 5 + 3 + 4
= 12 balls
P(first ball is red) = \(\frac{5}{12}\)
P(second ball is red) = \(\frac{4}{11}\)
\(\therefore\) P(both balls are red) = \(\frac{5}{12} \times \frac{4}{11}\)
= \(\frac{5}{33}\)
Express 25° 45' in decimal (Hint: 1° = 60')
25.75o
25.55o
25.45o
25.15o
Correct answer is A
25° 45' = 25° + \(\frac{45}{60}\)°
= 25° + 0.75°
= 25.75°