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G C S E Code Question

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kuiperbelt | 15:49 Wed 12th Apr 2023 | Science
23 Answers
Liam is trying to remember a 3-digit code.

He knows the rule that, the first digit is a cube number.
The second digit is a factor of 16. The third digit is an odd number.

Liam tries a random code that matches the rule.
Expressing as a percentage, calculate
the probability that his code is correct.
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1st digit 1 or 8 2nd digit (factor of 16) 1 2 4 or 8 3rd digit 1 3 5 7 or 9 = 2 x 4 x 5 variants = 1/40
16:03 Wed 12th Apr 2023
I think Tuvoc should get best answer.
Question Author
My grandson knew the answer (2.5%) from the mark scheme. The Winner gets BA for showing their method.

Acknowledgment to bobbin's posts, they raise an interesting if not a moot point !!
You didn’t ask for the method! You have done on other questions. You need to be consistent. Sheesh.

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