JAMB Mathematics 2017 Objective — Question 36

Question 36 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2017 Objective paper, with the correct answer and a full explanation.

Evaluate (5⁻³ x 5⁻⁴)/(5⁻⁶ x 5⁻²).

• A. A. 5Correct
• B. B. 25
• C. C. -7
• D. D. 48

Explanation

Numerator: 5^(-3-4)=5⁻⁷. Denominator: 5^(-6-2)=5⁻⁸. Dividing: 5^(-7-(-8))=5¹=5.

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