Jamb Mathematics Past Questions and Answers

Question 146:

• JAMB 2018

If \(\frac{x}{a + 1}\) + \(\frac{y}{b}\) = 1. Make y the subject of the relation.

A. \(\frac{b(a + 1 - x)}{a + 1}\)
B. \(\frac{a + 1}{b(a - x + 1)}\)
C. \(\frac{a(b - x + 1)}{b + 1}\)
D. \(\frac{b}{a(b - x + 1)}\)

Question 147:

• JAMB 2018

Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm

A. 1920cm\(^2\)
B. 592cm\(^2\)
C. 296cm\(^2\)
D. 148cm\(^2\)

Question 148:

• JAMB 2018

The probabilities that John and James pass an examination are \(\frac {3}{4}\)and \(\frac {3}{5}\) respectively. Find the probability of both boys failing the examination.

A. \(\frac {1}{10}\)
B. \(\frac {2}{10}\)
C. \(\frac {9}{20}\)
D. \(\frac {11}{20}\)

Question 149:

• JAMB 2018

An arc of a circle of radius 14cm subtends angle 300° at the centre. Find the perimeter of the sector formed by the arc (take π = \(\frac{22}{7}\))

A. 14.67cm
B. 42.67cm
C. 101.33cm
D. 513.33cm

Question 150:

• JAMB 2018

Simplify

\(\frac {25^{\frac{2}{3}} \div 25^{\frac{1}{6}}} {(\frac{1}{5})^{\frac{7}{6}} \div (\frac{1}{5})^{\frac{1}{6}}}\)

A. 25
B. \(\frac{1}{5}\)
C. 1
D. \(\frac{1}{25}\)