Mathematics Past Questions

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Past Questions

4,407 questions
Question 1 of 20 4,407 total questions
Question 1331
waec 2001

which of the following is not quadratic expression?

A\(y = 2x^2 - 5x\)
B\(y=x(x-5)\)
C\(y = x^2 - 5\)
Dy = 5(x-1)
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Question 1332
waec 2001

If \(2x^2 + kx - 14 = (x+2)(2x-7)\), find the value of K

A-3
B5
C9
D11
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Question 1333
waec 2001

if \(\frac{4m+3n}{4m-3n}=\frac{5}{2}\), find the ratio m:n

A7:4
B4:3
C3:4
D4:7
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Question 1334
waec 2001

If \(\frac{y-3}{2}

Ay > 7
By < -7
Cy > -7
Dy < 7
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Question 1335
waec 2001

Simplify \(\frac{2x-1}{3}-\frac{x+3}{2}\)

A\(\frac{x+3}{6}\)
B\(\frac{x+8}{6}\)
C\(\frac{x-11}{6}\)
D\(\frac{x-4}{6}\)
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Question 1336
waec 2001

Factorize \(6x^2 + 7x - 20\)

A(6x - 5)(x + 4)
B2(3x-5)(x+2)
C(3x+4)(2x-5)
D(3x-4)(2x+5)
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Question 1337
waec 2001

Evaluate \(\frac{x^2 + x - 2}{2x^2 + x -3}\) when x = -1

A-2
B-1
C\(-\frac{1}{2}\)
D1
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Question 1338
waec 2001

Given that y = px + q and y = 5 when x = 3, while y = 4 when x = 2, find the value of p and q.

Ap = 1, q = 3
Bp = 1, q = 2
Cp = -2, q = 3
Dp = 3, q = -2
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Question 1339
waec 2001
A man is four times as old as his son. The difference between their ages is 36 years Find the sum of their ages
A45 years
B48 years
C60 years
D74 years
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Question 1340
waec 2001

Evaluate \(\frac{1}{2}+\frac{3}{4}of\frac{2}{5}\div 1\frac{3}{5}\)

A\(\frac{15}{16}\)
B\(\frac{11}{16}\)
C\(\frac{49}{50}\)
D\(3\frac{1}{5}\)
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Question 1341
waec 2001

The nth term of a sequence is \(2^{2n-1}\). Which term of the sequence is \(2^9?\)

A3rd
B4th
C5th
D6th
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Question 1342
waec 2001

Evaluate \(5\frac{2}{5}\times \left(\frac{2}{3}\right)^2\div\left(1\frac{1}{2}\right)^{-1}\)

A\(\frac{8}{25}\)
B\(\frac{12}{25}\)
C\(3\frac{3}{5}\)
D\(4\frac{1}{8}\)
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Question 1343
waec 2001

A boy estimated his transport fare for a journey as N190 instead of N200. Find the percentage error in his estimate

A95%
B47.5%
C5.26%
D5%
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Question 1344
waec 2001

In a bag of oranges, the ratio of the good ones to the bad ones is 5:4. If the number of bad oranges in the bag is 36, how many oranges are there in the altogether?

A81
B72
C54
D45
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Question 1345
waec 2001

Express 0.0462 in standard form

A0.460 x 10-1
B0.462 x 10-2
C4.62 x 10-1
D4.62 x 10-2
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Question 1346
waec 2001

If N varies directly as M and N = 8 when M = 20 find M when N = 7

A13
B15
C\(17\frac{1}{2}\)
D\(18\frac{1}{2}\)
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Question 1347
waec 2001

In a class of 80 students, every students studies Economics or Geography or both. If 65 students study Economics and 50 study Geography, how many study both subjects?

A15
B30
C35
D45
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Question 1348
waec 2001

Evaluate \(log_{10}5 + log_{10}20\)

A2
B3
C4
D5
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Question 1349
waec 2001

Evaluate \((20_{three})^2 - (11_{three})^2\) in base three

A101
B121
C202
D2020
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Question 1350
waec 2001

Which of the following correctly expresses 48 as a product of prime factors?

A3 x 4 x 4
B2 x 3 x 8
C2 x 2 x 2 x 3 x 4
D2 x 2 x 2 x 2 x 3
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