How many four-digit numbers can be formed by using each of the digits 9, 2, 0, 4 only once ? (1) 24 12) 18 (3) 20 (4) 12
Answers
Answered by
0
Answer:
18
Step-by-step explanation:
as 9204, 9240, 9042, 9024, 9420, 9402
2049, 2094, 2409, 2490, 2904, 2940
4029, 4092, 4902, 4920, 4209, 4290
if we start any number with 0, it has no value like 0249 = 249 which is not a 4 digit no.
therefore 2nd option 18
hope it helped you
Answered by
0
Answer:
the answer is 18
Step-by-step explanation:
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