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Are three digit numbers formed using the digits 3 4 7 8 and 2 without repetition the probability that it is an odd number?

Are three digit numbers formed using the digits 3 4 7 8 and 2 without repetition the probability that it is an odd number?

A three digit number is to be formed using the digits 3, 4, 7, 8 and 2 without repetition. The probability that it is an odd. number is. (A ) 2/5.

How many 3-digit numbers are there with no digit repeated?

So, there are 9 ways to fill the ten’s place. And, there are 8 ways to fill the unit’s digit. Required number of numbers =(9×9×8)=648.

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How many 3 digit numbers can be formed from the digits 3 4 7 and 8 no digit repeated?

so, 60 3-digit numbers can be formed using only 2,3,4,7 and 8 with no repeats.

What is the product of the smallest 3 digit number?

Smallest three digit number is 100. So the product of 48×100 is 4800. nothing now.

How do you square a 2 digit number?

Steps for Squaring Two Digit Numbers

  1. Step 1: Add the last digit of the number you are trying to square to the entire number itself, creating your sum.
  2. Step 2: Multiply the sum (step 1) by the first digit of the base number.
  3. Step 3: Square the last digit of the base number.

What is the probability that a 3 digit number is odd?

The probability that it is an odd number is A three digit number is to be formed using the digits 3,4,7,8 and 2 without repetition. The probability that it is an odd number is Three places of a 3 digit number can be filled by using 5 digits in = 5×4×3 =60 ways.

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How many ways can a 3 digit number be formed?

A three digit number is to be formed from given 5 digits 1,2,3,4,5. Now, there are 5 ways to fill ones place. Since, repetition is allowed , so tens place can also be filled by 5 ways. Similarly,hundreds place can also be filled by 5 ways.

What is the probability of a 4/7 even number?

The correct answer is 4/7 (=120/210). Also notice that there are 4 even and 3 odd digits, so 4/7 are even. Say you pick the ending digit first, that has a 4/7 chance of being even. So simple!

How do you find the even digit of a 3-digit number?

If you look at the last digit of the 3 digit number, there are C (4,1) ways to select an even digit. Once the ending digiit is known to be even, the other two digits can be even or odd. So C (4,1) must be multiplied by P (6,2) which is the number of ways of arranging the other 2 digits out of the 6 remaining digits.