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secondary 2 | Maths
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hi i need help
Date Posted: 3 years ago
Views: 271
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Average of 3 digits is too so sum is 3x2=6
Then list combinations. 6 and 2 zeros, 5 and 1 and 0 and so on. Then u mix and match.600,150,105,510,501,411,114,141...
Trick to this is 600 is one alone, three different digits with a 0 like 5 1 and 0 have 4 combinations. Repeat numbers like 4 and two 1s have 3 combinations. Identify different types of numbers and add all combinations up
Then list combinations. 6 and 2 zeros, 5 and 1 and 0 and so on. Then u mix and match.600,150,105,510,501,411,114,141...
Trick to this is 600 is one alone, three different digits with a 0 like 5 1 and 0 have 4 combinations. Repeat numbers like 4 and two 1s have 3 combinations. Identify different types of numbers and add all combinations up
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