Post-UTME Mathematics 2019 Objective — Question 35
Question 35 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2019 Objective paper, with the correct answer and a full explanation.
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Solve for y in the equation 10^y x 5^(2y-2) x 4^(y-1) = 1
- A. 3/4
- B. 5/4
- C. 2/3Correct
- D. 5
Explanation
Equating powers of the prime factorizations of 10, 5, and 4 as in the source solution gives y=2/3.
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