Jamb Mathematics 2019 Past Questions and Answers

Question 31:

• JAMB 2019

Integrate \(\int_{-1} ^{2} (2x^2 + x) \mathrm {d} x\)

A. \(4\frac{1}{2}\)
B. \(3\frac{1}{2}\)
C. \(7\frac{1}{2}\)
D. \(5\frac{1}{4}\)

Question 32:

• JAMB 2019

If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.

A. 12
B. 8
C. 9
D. 16

Question 33:

• JAMB 2019

Tade bought 200 mangoes at 4 for 30 out of the mangoes got spoilt and the remaining were sold at 2 for Find the percentage profit or loss.

A. 43.6% loss
B. 35% profit
C. 63.2% profit
D. 28% loss

Question 34:

• JAMB 2019

The simple interest on #8550 for 3 years at x% per annum is #4890. Calculate the value of x to the nearest whole number.

A. 19%
B. 20%
C. 25%
D. 16.3%

Question 35:

• JAMB 2019

Simplify 81\(^{\frac{-3}{4}}\) x 25\(^{\frac{1}{2}}\) x 243\(^{\frac{2}{5}}\)

A. \(\frac{2}{5}\)
B. \(\frac{3}{5}\)
C. \(\frac{5}{2}\)
D. \(\frac{5}{3}\)