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.
Evaluate 21.05347 - 1.6324 x 0.43 to 3 decimal places
20.980
20.351
20.981
20.352
Correct answer is D
Hint: Use BODMAS, in other words, do multiplication of the second and the last first before subtracting value obtained from the first.
1, 3, 1
1, 2, 1
2, 1, 1
1, 1, 3
Correct answer is D
At x = 1, substituting x = 1 in the equation: ax2 + bx + c = 5;
f(1) => a + b + c = 5 .....(1)
Taking the first derivative of f(x) in the original equation gives dy/dx = 2ax + b = 2x + 1 (given)....(2)
From (2),=> b = 1, and 2ax = 2x, => a = 1.
substituting into (1) 1 + 1 + c = 5, => c = 5 - 2 = 3
Thus a = 1, b = 1 and c = 3
A function f(x) passes through the origin and its first derivative is 3x + 2. What is f(x)?
y = (3x2/)2 + 2x
y = (3x2)/2 + x
y = 3x2 + (x/2)
y = 3x2 +2x
Correct answer is A
Hints:
1. Integrate the given first derivative of f(x) at the boundaries, (0,0)
Then solve accordingly to get f(x) = y = (3x2/)2 + 2x
15
28
30
45
Correct answer is D
No of ways of choosing 1 man, 2 women = 5C1 x 3C2
No of ways of choosing 2 men, 1 woman = 5C2 x 3C1
Summing, => (5C1 x 3C2) + (5C2 x 3C1) = 15 + 30 = 45
16
14
12
10
Correct answer is A
Range = Highest - lowest number => 10-4 = 6
Mode is the number with highest occurrence => Mode = 10
Sum = 6 + 10 = 16