1 Using the digits 1 4 8 four digit numbers are formed and the sum of all possible such numbers

1 number is missing in the question ,I think!!
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need explaination sos...
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no of digit 3, we can repeat , so possible way .....3^3=27..........and sum of these no =27(unit place nos+10*unit+100*unit+1000*unit);
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How you got 27?
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question asked about four digit number
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Answer is : 389961
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pls expain how u got dat
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please explain
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please expain clearly
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pls give me explanation
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ans will be 81 since repetition is allowed so 3*3*3*3=81
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1. Using the digits 1,,4,8 four digit numbers are formed and the sum of all possible such numbers.