Question 141:

• JAMB 2018

A trader realises 10x - x\(^2\) Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?

A. 7
B. 6
C. 5
D. 4

Question 142:

• JAMB 2018

If y = 23\(_{five}\) + 101\(_{three}\) , find y, leaving your answer in base two

A. 1110
B. 10111
C. 11101
D. 111100

Question 143:

• JAMB 2018

Find the value of x in the diagram

A. 10°
B. 28°
C. 36°
D. 40°

Question 144:

• JAMB 2018

Solve for t in the equation \(\frac{3}{4}\)t + \(\frac{1}{3}\)(21 - t) = 11

A. \(\frac{9}{13}\)
B. \(\frac{7}{13}\)
C. 5
D. 9\(\frac{3}{5}\)

Question 145:

• JAMB 2018

A school girl spends \(\frac{1}{4}\) of her pocket money on books and \(\frac{1}{3}\) on dress. What fraction remains?

A. \(\frac{5}{6}\)
B. \(\frac{7}{12}\)
C. \(\frac{5}{12}\)
D. \(\frac{1}{6}\)