SOLUTION: What least number should be added to 3756.so that the sum can be exactly divided by 45

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Question 1045327: What least number should be added to 3756.so that the sum can be exactly divided by 45
Answer by Boreal(15235) About Me  (Show Source):
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If divisible by 45, it has to end in 0 or 5, and it has to occur within 45. The first 4 are not possible, so the possible interval begins at 3760 and ends and 3800.
45*8=360, so 3600 is an even multiple.
the choices after that are 3645, 3690,3735, and 3780.
3780 is the key number, and 24 must be added to 3756.