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MATHEMATICS

JAMB 2020 - Question 8

Mathematics 2020 JAMB Past Questions - Question 8: If 29 x (Y3)9 = 35 x (Y3)5, find the value of Y.

Choose the most appropriate option for the gap .

If 29 x (Y3)9 = 35 x (Y3)5, find the value of Y.

A: 4

B: 3

C: 2

D: 1

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Correct Answer

Explanation

(2 x 9^0) (Y x 9^1 + 3 x 9^0) = (3 x 5^0)(Y x 5^1+ 3 x 5^0).(2 * 1)(Y *9 + 3) = (3 * 1)(Y * 5 + 3)18y + 6 = 15y + 918y - 15y = 9 - 63y = 3y = 1