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JSCE Mathematics 2023 Theory — Question 3

Question 3 of 17 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Theory paper, with the correct answer and a full explanation.

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(iii) W when V = 20

Model answer

20 = 25W/8, so W = 20 x 8 / 25 = 160/25 = 6.4.

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