Indices - Jamb Mathematics Past Questions with Answers

Jamb Mathematics Past Questions

Jamb Past Questions and Answers on Indices

Question 1:

JAMB 1979

The mean of the numbers 1.2, 1.0, 0.9, 1.4, 0.8, 0.8, 1.2 and 1.1 is

A. 1.5
B. 0.8
C. 1.0
D. 1.02
E. 1.05

View Answer & Explanation

Question 2:

JAMB 2019

Simplify 81

^{\frac{- 3}{4}}

x 25

^{\frac{1}{2}}

x 243

^{\frac{2}{5}}

\frac{2}{5}

\frac{3}{5}

\frac{5}{2}

\frac{5}{3}

View Answer & Explanation

Question 3:

JAMB 2019

If 2

^{x + y}

= 16 and 4

^{x - y} = \frac{1}{32}

, find the values of x and y.

A. X =

\frac{3}{4}

, y =

\frac{11}{4}

B. X =

\frac{3}{4}

, y =

\frac{13}{4}

C. X =

\frac{2}{3}

, y =

\frac{4}{5}

D. X =

\frac{2}{3}

, y =

\frac{13}{4}

View Answer & Explanation

Question 4:

JAMB 2019

25^{1 - x} \times 5^{x + 2} \div (\frac{1}{125})^{x} = 625^{- 1}

, find the value of x.

A. X = -4
B. X = 2
C. X = -2
D. X = 4

View Answer & Explanation

Question 5:

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}

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

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