Jamb Mathematics 1982 Past Questions and Answers

Question 31:

• JAMB 1982

The solution to the quadratic equation 5 + 3x - 2x² = 0 is

A. (\(\frac{5}{2}\), 1)
B. (5, 3)
C. -(\(\frac{5}{2}\), -1)
D. (\(\frac{5}{2}\), -1)

Question 32:

• JAMB 1982

A housewife bought 3 kilograms of garri at N13.00 per kg. She deposited N160. 00 for half a cow and bought 24 oranges at 10k each. She came back home with N20.60. She therefore left home with

A. N220.00
B. N222.00
C. N201.40
D. N202.00
E. N180.80

Question 33:

• JAMB 1982

The solution to the simultaneous equations 3x + 5y = 4, 4x + 3y = 5 is

A. (\(\frac{-13}{11}, \frac{1}{11}\))
B. (\(\frac{13}{11}, \frac{1}{11}\))
C. (\(\frac{13}{11}, \frac{-1}{11}\))
D. (\(\frac{11}{13}, \frac{1}{11}\))
E. (13, 11)

Question 34:

• JAMB 1982

The area of the curved surface of the cone generated by the sector of a circle radius 6cm and are length 22cm is (\(\pi\) = \(\frac{22}{7}\))

A. 58 sq.cm
B. 34 sq.cm
C. 132 sq.cm
D. 77 sq.cm
E. 66 sq.cm

Question 35:

• JAMB 1982

The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are

A. (21cm³, 3cm³)
B. (24cm³, 3cm³)
C. (24cm³, 21cm³)
D. (72cm³, 9cm³)
E. (63cm³, 9cm³)