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By using 2, 4, 5, 7, 8, 9. How many three digit numbers are formed in form xyz when x < y and z < y (Repition not allowed) :-
Correct answer is '40'. Can you explain this answer?
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By using 2, 4, 5, 7, 8, 9. How many three digit numbers are formed in ...
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By using 2, 4, 5, 7, 8, 9. How many three digit numbers are formed in ...
Is greater than 3, y is an odd number, and z is even?
To form a three-digit number in the form xyz, we have the following restrictions:
1. x is greater than 3: Since we have the numbers 4, 5, 7, 8, and 9, x can take any of these values.
2. y is an odd number: We have the odd numbers 5 and 7, so y can take either of these values.
3. z is an even number: We have the even numbers 2, 4, 8, so z can take any of these values.
Using the multiplication principle, the number of three-digit numbers that can be formed in the given form is the product of the number of options for each digit.
Number of options for x: 5 (since x can be any of the numbers 4, 5, 7, 8, or 9)
Number of options for y: 2 (since y can be either 5 or 7)
Number of options for z: 3 (since z can be any of the numbers 2, 4, or 8)
Therefore, the total number of three-digit numbers that can be formed in the given form is 5 * 2 * 3 = 30.
To form a three-digit number in the form xyz, we have the following restrictions:
1. x is greater than 3: Since we have the numbers 4, 5, 7, 8, and 9, x can take any of these values.
2. y is an odd number: We have the odd numbers 5 and 7, so y can take either of these values.
3. z is an even number: We have the even numbers 2, 4, 8, so z can take any of these values.
Using the multiplication principle, the number of three-digit numbers that can be formed in the given form is the product of the number of options for each digit.
Number of options for x: 5 (since x can be any of the numbers 4, 5, 7, 8, or 9)
Number of options for y: 2 (since y can be either 5 or 7)
Number of options for z: 3 (since z can be any of the numbers 2, 4, or 8)
Therefore, the total number of three-digit numbers that can be formed in the given form is 5 * 2 * 3 = 30.
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By using 2, 4, 5, 7, 8, 9. How many three digit numbers are formed in form xyz when x < y and z < y (Repition not allowed) :-Correct answer is '40'. Can you explain this answer?
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