Post Utme Mathematics Past Questions and Answers

Question 366:

A polynomial in \(x\) whose zeros are \(1,-\) 1 and 2 is

A. \(x^{2}+2 x^{2}+x+2\)
B. \(2 x^{3}-x^{2}+2 x^{2}\)
C. \(x^{3}-2 x^{2}+2\)
D. \(x^{2}-2 x^{2}-x-2\)

Question 367:

The 7 th term of an AP is twice the third term. If the first term is 12 , find the common, difference.

A. 6
B. 24
C. 14
D. 42

Question 368:

The weight Wkg of a metal bar varies jointly as its length L meter and the square of its diameters. if \(\mathrm{W}=90\) when \(\mathrm{d}=3 / 2\) and \(\mathrm{L}=36\)

A. \(\sqrt{\frac{W}{10 L}}\)
B. \(\sqrt{\frac{7 W}{10 L}}\)
C. \(\sqrt{\frac{10 W}{10 L}}\)
D. \(\sqrt{\frac{71}{10 L}}\)

Question 369:

Find the principal which amounts to ____________

A. #5,000
B. #4,900
C. #4,800
D. #4,700

Question 370:

A car dealer bough a second hand car for N250,000.00 and spend N70,000.00 refurbishing it: He then sold the for # 400,000.00. what is the percentage gain?

A. \(20 \%\)
B. \(25 \%\)
C. \(32 \%\)
D. \(60 \%\)