Indices - Jamb Mathematics Past Questions with Answers

Jamb Mathematics Past Questions

Jamb Past Questions and Answers on Indices

Question 21:

JAMB 1980

If it is given that 5^{x + 1} + 5^x = 150, then the value of x is equal to

A. 3
B. 4
C. 1
D. 2
E.

\frac{1}{2}

View Answer & Explanation

Question 22:

JAMB 1981

simplify

\frac{6^{2 n + 1} \times 9^{n} \times 4^{2 n}}{18^{n} \times 2^{n} \times 12^{2 n}}

A. 3²ⁿ
B. 3 x 2^{3n - 1}
C. 2ⁿ
D. 6
E. 1

View Answer & Explanation

Question 23:

JAMB 1983

(\frac{2}{3})^{m} (\frac{3}{4})^{n} = \frac{256}{729}

, find the values of m and n.

A. M = 4, n = 2
B. M = -4, n = -2
C. M = -4, n =2
D. M = 4, n = -2
E. M = -2, n = 4

View Answer & Explanation

Question 24:

JAMB 1983

Simplify

\sqrt[3]{\frac{27 a^{- 9}}{8}}

.

A.

\frac{9 a^{2}}{2 a^{3}}

\frac{3}{2 a^{3}}

\frac{2}{3 a^{2}}

\frac{3 a^{2}}{2}

View Answer & Explanation

Question 25:

JAMB 1984

Simplify

\frac{3^{n} - 3^{n - 1}}{3^{3} \times 3^{n} - 27 \times 3^{n - 1}}

A. 1
B. 6
C.

\frac{1}{27}

\frac{4}{3}

View Answer & Explanation

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Indices - Jamb Mathematics Past Questions and Answers

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Jamb Mathematics Past Questions

Jamb Past Questions and Answers on Indices

Question 21:

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