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.
\(\frac{-8}{15}\)
\(\frac{8}{15}\)
\(\frac{17}{15}\)
\(\frac{-17}{15}\)
Correct answer is A
p>\(x \ast y = \frac{x^2 - y^2}{2xy}\\
=\frac{(x+y)(x-y)}{2xy}\\
-5 \ast 3 =\frac{(-5+3)(-5-3)}{2(-5\times3)}\\
=\frac{-2 \times -8}{2(-5\times3)}\\
=\frac{-8}{15}\)
p varies directly as r3
p varies inversely as r6
p varies inversely as 6√P
p varies directly as r6
Correct answer is C
P ∝ 1/q3
P = K/q3
q3 = K/P
q = K/p1/3
But q ∝ r2
q = Kr2
K/p1/3 = Kr2
r2 = K/p1/3 x 1/K
r2 = 1/p1/3
r = (1/p1/3)2
r = 1/p1/6
r ∝ 1/p1/6
∴ r varies inversely as 6√P
1/12
10/3
1/20
9/5
Correct answer is D
x ⊕ y = xy/6 = xe/6 = x
xe = 6x
e = 6
x ⊕ y = xx1/6 where x1 = 20
x x 20/6 = 6
x = 36/20
x = 9/5
NQ
1/4NQ
2NQ
1/2NQ
Correct answer is A
No explanation has been provided for this answer.
PQRSTW is a regular hexagon and QS intersects RT at V. Calculate ∠TVS
120o
90o
30o
60o
Correct answer is D
No explanation has been provided for this answer.