NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 256:

• JAMB 1986

Find the smallest number by which 252 can be multiplied to obtain a perfect square

A. 2
B. 3
C. 5
D. 7

Question 257:

• JAMB 1986

Find the reciprocal of \(\frac{\frac{2}{3}}{\frac{1}{2} + \frac{1}{3}}\)

A. \(\frac{4}{5}\)
B. \(\frac{5}{4}\)
C. \(\frac{2}{5}\)
D. \(\frac{6}{7}\)

Question 258:

• JAMB 1986

Three boys shared some oranges. The first received \(\frac{1}{3}\) of the oranges, the second received \(\frac{2}{3}\) of the remainder. If the third boy received the remaining 12 oranges, how many oranges did they share?

A. 60
B. 54
C. 48
D. 42

Question 259:

• JAMB 1986

If P = 18, Q = 21, R = -6 and S = -4, Calculate \(\frac{(P- Q)^3 + S^2}{R^3}\)

A. \(\frac{-11}{216}\)
B. \(\frac{11}{216}\)
C. \(\frac{-43}{116}\)
D. \(\frac{43}{116}\)

Question 260:

• JAMB 1986

Simplify \(\frac{0.0324 \times 0.00064}{0.48 \times 0.012}\)

A. 3.6 x 10²
B. 3.6 x 10^-2
C. 3.6 x 10^-3
D. 3.6 x 10^-4