Q. |
How many 4 digit numbers from 5000 to 8000 can be formed from the digits 4,5,6,7,8 and 0? |
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A. 864 |
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B. 863 |
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C. 648 |
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D. 649 |
How many 4 digit numbers from 5000 to 8000 can be formed from the digits 4,5,6,7,8 and 0?
The thousand placed can be filled in 3 ways i.e. 5 or 6 or 7
The other places can be filled in 6 ways.
3 × 6 × 6 × 6 = 648
As 8000 will be included, the answer would be 648 + 1= 649