Post Utme Mathematics Past Questions and Answers

Question 411:

What factor is common to all the expressions \(x^{2}-x, 2 x^{2}+x-1\) and \(x^{2} 17\)

A. X
B. \(x-1\)
C. \(x+1\)
D. No Common Factor
E. \((2 x-1)\)

Question 412:

Simplify \(\log _{10} 0-\log _{104}\)

A. \( \log _{10} 2\)
B. \(\log _{10} 8\)
C. O
D. \(\log _{10} 4\)

Question 413:

If \(f(x-2)=3 x^{2}+4 x+1\). find f(1)

A. 8
B. 40
C. 7
D. 32
E. 21

Question 414:

Given that \(p: g=1 / 3: 1 / 2\) and \(q: r=2 / 5: 4 / 7\) find \(p:r\)

A. \(4: 105\)
B. 7:15
C. 20:21
D. \(2: 36\)

Question 415:

If \(x\) is jointly proportional to the cube of \(y\) and the foufth power of \(z\). in what ratio is \(x\) increased or decreased when \(y\) is halved and \(z\) is double?

A. \(4: 1\) increase
B. \(2: 1\) increase
C. \(1: 4\) decrease
D. 1:1 no change
E. \(3: 4\) decrease