Question 41:

• JAMB 2019

Solve the inequality: -7 \(\leq\) 9 - 8x < 16 - x

A. -1 \(\leq\) x \(\leq\) 2
B. -1 \(\leq\) x < 2
C. -1 < x < 2
D. -1 < x \(\leq\) 2

Question 42:

• JAMB 2019

The nth term of a sequence is given by 2\(^{2n - 1}\). Find the sum of the first four terms.

A. 74
B. 32
C. 42
D. 170

Question 43:

• 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 44:

• 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 45:

• 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