Question No. 9
If repetition is allowed, then the total number of -
digit numbers that can be formed using the digits
1.2.5.6.7 and that are divisible by 4.is
O
250
O 180
300
O 125
1
Answers
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0
Answer: Number ending with either 0 or 5 is divisible by 5
Case 1) unit place is 0
Numbers=6×5×4=120
Case 2) unit digit is 5
Numbers =5×5×4=100
∴ total number =120+100=220
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