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Earn +20 ptsQ: How many 3-digit numbers are there using 2 4 6 8 and 9?
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How many whole numbers can you make using the first three whole numbers?
Using 1, 2, and 3, you can make 27 whole numbers.
How many 2 digit numbers can you make using the numbers 1 2 3 6 7 8 9?
7^2=49
Is 5291 a prime number using 2 numbers?
No 5291 is not a prime using 2 numbers. It is a prime using three numbers.
How many 3digit numbers can be formed from digits320 with repetition?
18.You can answer it easily by considering three places for three digits of the number.The hundreds place cannot take zero hence it can take 2 values.The next two places can take all the three digits.Hence the total number of ways is 2*3*3=18.
How many 4 digit numbers can you arrange using numbers 1 2 and 4 while repeating some of the numbers?
1124 1224 1244
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