JSCE Mathematics 2023 Objective — Question 63

Question 63 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Find the LCM of 2² x 3³ x 5 x 7²; 2³ x 3² x 5² x 7⁴; 2 x 3 x 5³ x 7 x 11

A. 6.4827 x 10⁷
B. 7.492 x 10⁸
C. 7.1213 x 10⁸Correct
D. 9.1382 x 10¹⁰

Explanation

LCM = 2³ x 3³ x 5³ x 7⁴ x 11 = 713,097,000 = 7.13 x 10⁸, nearest option 7.1213 x 10⁸.

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