Jamb Mathematics 1978 Past Questions and Answers

Question 1:

• JAMB 1978

A group of market women sell at least one of yam, plantain and maize. 12 of them sell maize, 10 sell yam and 14 sell plantain. 5 sell plantain and maize, 4 sell yam and maize, 2 sell yam and plantain only while 3 sell all the three items. How many women are in the group?

A. 25
B. 19
C. 18
D. 17

Question 2:

• JAMB 1978

In the diagram above MN is a chord of a circle KMN centre O and radius 10cm. If < MON = 140°, find, to the nearest cm, the length of the chord MN.

A. 10cm
B. 18cm
C. 17cm
D. 12cm

Question 3:

• JAMB 1978

A rectangular picture 6cm by 8cm is enclosed by a frame \(\frac{1}{2}\)cm wide. Calculate the area of the frame

A. 15sq.cm
B. 20sq.cm
C. 13sq.cm
D. 16sq.cm
E. 17sq.cm

Question 4:

• JAMB 1978

The sum of \(3\frac{7}{8}\) and \(1\frac{1}{3}\) is less than the difference between \(\frac{1}{8}\) and \(1\frac{2}{3}\) by:

A. 3\(\frac{2}{3}\)
B. 5\(\frac{1}{4}\)
C. 6\(\frac{1}{2}\)
D. 8
E. 8\(\frac{1}{8}\)

Question 5:

• JAMB 1978

Multiply (x + 3y + 5) by (2x2 + 5y + 2)

A. 2x² + 3yx² + 10xy + 15y² + 13y + 10x² + 2x + 10
B. 2x³ + 6yx² + 5xy + 15y² + 31y + 5x² + 2x + 10
C. 2x³ + 6xy² + 5xy + 15y² + 12y + 10x² + 2x = 10
D. 2x² + 6xy² + 5xy + 15y² + 13y + 10x² + 2x + 10
E. 2x³ + 2yx² + 10xy + 10y² + 31y + 5x² + 10