Post Utme Mathematics Past Questions and Answers

Question 391:

What is the difference between \(1.867551\) correct to four significant figures and \(1.867551\) correct to four decimal places?

A. \(5 \times 10^{-3}\)
B. \(4 \times 10^{-4}\)
C. \(5 \times 10^{-4}\)
D. \(10 \times 10^{-3}\)

Question 392:

In an examination, all the candidates offered at least one of English and French, if \(52 \%\) offered French and \(65 \%\) offered English, what percentage offered French only?

A. \(17 \%\)
B. \(35 \%\)
C. \(48 \%\)
D. \(45 \%\)

Question 393:

Simplify \(2 x^{2}+x-8 \sqrt{6 x^{3}+5 x^{2}-8 x-3}\)

A. \(3 x-1\)
B. \(1-3 x\)
C. \(3 x+1\)
D. \(-(3 x+1)\)

Question 394:

Find the range of values of \(x\) satisfying the inequalities \(2 x-5<7\) and \(25+2 x>15\)

A. \(5<x<6\)
B. \(-5<x<6\)
C. \(-6<x<5\)
D. \(-6<x<-5\)

Question 395:

If the \(8^{\text {th }}\) term of an AP is three times the second term and the sum of the first three term is 18 , find the first term of the AP

A. 4
B. 2
C. 8
D. 3