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Assuming each of the given digits can be used only once, the answer is 24. If not, the answer is infinity.

Q: How many numbers can be formed using digits 1245?

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Since the order of the digits does not matter there are only five combinations: 1234, 1235, 1245, 1345 and 2345.

10% off of 1245 = 1120.5 = 1245 - (10% * 1245) = 1245 - (0.10 * 1245) = 1245 - 124.5 = 1120.5

1245 is divisible by 5.

1245/10 = 124.5

1245 + 130 = 1,375

2000 - 1245 = 755

1000 metres = 1 kilometre so 1245 metres = 1245/1000 = 1.245 kilometres. So simple!1000 metres = 1 kilometre so 1245 metres = 1245/1000 = 1.245 kilometres. So simple!1000 metres = 1 kilometre so 1245 metres = 1245/1000 = 1.245 kilometres. So simple!1000 metres = 1 kilometre so 1245 metres = 1245/1000 = 1.245 kilometres. So simple!

1245

1245 is not a prime - it is divisible by 3, 5, 15, 83, 249, 415 as well as 1 & 1245.

The positive integer factors of 1245 are: 1, 3, 5, 15, 83, 249, 415, 1245

There are only 5 distinct combinations of 4 numbers.(1234, 1235, 1245, 1345, 2345) C = 5! / 4!But there are 120 distinct combinations in distinct order (i.e. 24 ways to order each abcd).abcdabdcacbdacdbadbcadcb

There are 15, and they are:1234 1235 1236 1245 1246 1256 1345 1346 1356 1456 2345 2346 2356 2456 3456.