CBSE Class 6 Answered
How many 4 digit numbers can be written using the digits 2, 4, 3 and 0 no repetition is allowed
Asked by rvsingh19701 | 27 Apr, 2022, 01:40: PM
Expert Answer
1000 place - 3 options (0 can't be taken)
100 place - 3 options (one number used up for 1000 place)
10 place - 2 options (two numbers used up for 1000 and 100 place)
1 place - 1 option (three numbers used up for 1000,100 and 10 place)
total = 3x3x2x1=18 numbers
Answered by Arun | 28 Apr, 2022, 08:22: AM
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