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.
Three boys shared D 10,500.00 in the ratio 6:7:8. Find the largest share.
4000
5000
4500
3500
Correct answer is A
Total proportion is 6+7+8 = 21
\(\frac{6 * 10500}{21}\) = 3000
\(\frac{7 * 10500}{21}\) = 3500
\(\frac{8 * 10500}{21}\) = 4000
The largest share is 4000
If a = 3 and b = -7, find the value of \(\frac{5b+(a+b)^2}{(a-b)^2}\)
0.51
0.91
-0.19
-0.51
Correct answer is C
\(\frac{5b+(a+b)^2}{(a-b)^2}\)
= \(\frac{5 * -7 +(3+ -7)^2}{(3- -7)^2}\)
= \(\frac{-35 + 16}{10^2}\)
= \(\frac{-19}{100}\) or -0.19
\(\frac{3n}{2p^2}\)
\(\frac{2n}{3p^2}\)
\(\frac{2n}{3p}\)
\(\frac{3n^2}{2p^2}\)
Correct answer is A
M = \(\frac{nk}{p^2}\)
k → \(\frac{mp^2}{n}\) = \(\frac{3x1^2}{2}\)
k = \(\frac{3}{2}\)
: m = \(\frac{3xn}{2p^2}\)
Find the 17term of the Arithmetic Progression (A.P):-6,-1,4
-91
-86
74
79
Correct answer is C
common difference d = -1 - [-6] → -1 + 6
d = 5; a = -6
T\(_n\) = a + (n-1)d
: T\(_{17}\) = -6 + (17 - 1) 5
→ -6 + (16)5
→ -6 + 80 = 74
240%
140%
120%
40%
Correct answer is B
cost price = $50
Selling price = 15 * 8 = $120
percentage profit = \(\frac{sp-cp}{cp}\) * 100 → \(\frac{120-50}{50}\) * 100
percentage profit = 70 * 2 → 140%