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David Q.

Answers (6)

There are actually very few ways you could get that total, so you could just work them all out. If (X, Y, Z) are the scores from the 1st, 2rd and 3rd dice respectively, then the possible outcomes that give a total of 16 are: (4, 6, 6), (6, 4, 6), (6, 6,
Just for the record the answer is ten. They are: ABC, ABD, ABE, ACD, ACE, ADE, BCD, BCE, BDE and CDE.
Should this read "Find the value of digit A if the five-digit number 1243B is to be divisible by both 4 and 9, with A not equal to B"? If so, I don't understand where A fits into the problem. Could you re-post the problem please?
There aren't that many two-digit perfect squares. I'd simply try them all out, starting with the largest I can think of (since that's most likely to have nine factors) and work backwards until I find one that works.
Why is the answer -12, please? I'm seeing the difference between two terms, the first of which approaches (2^3)=8 as h tends to zero, and the second of which approaches infinity as h tends to zero.
The sources I've come across indicate a much slower rate of slowing than the one given above. One gives a value of 0.005 seconds per year, another says 2 milliseconds since 1820, yet another gives an increase in the length of the day of 0.0017 seconds (or

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