Asked by Jacob

divide 405 in the ratio 3:12

give your final answer in the form ... and ...
Answered by Reiny
Let the two parts be 3x and 12x

3x + 12x = 405
solve for x, then find 3x and 12x

In the original question why did they not reduce the ratio of 3:12 to 1:4 ?
Repeat the solution with that ratio to see that you will get the same final answer.
Answered by tilly
what that didn't really explain the question
Answered by Cole
Useless
Answered by Thomas
They are saying that 405 can be divide by 5 and split into the ratio 1:4
Answered by Jake Kay
The heck
Answered by Sum Ting Wong
There is something wrong with this,
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