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How many 6 number combination can be made from 0 to 9?
For a six digit number the most significant digit cannot be zero (it will otherwise cease to be a six digit number). So MS digit can be 1,2,3,4,5,6,7,8, or 9. The Other five digits can be 0,1,2,3,4,5,6,7,8, or 9. Hence total number of six digit numbers that can be made with 0 to 9 is 9 x 10 x 10 x 10 x 10 x 10 = 900000
What is 10 in Roman Numerals?
The letter "X" stands for the number 10.
If 4 is subtracted from twice a number. The result is 10 less than the number?
Let the number be x: So: 2x-4 = x-10 => 2x-x = 4-10 => x = -6
What is the solution to this The product of a number and 3 is twice the sum of that number and 5?
Let's call the number "x". The given equation can be translated as: x * 3 = 2 * (x + 5). Simplifying the equation, we have: 3x = 2x + 10. Subtracting 2x from both sides gives: x = 10. So the solution to the equation is x = 10.
How many different telephone numbers can be formed from a seven digit number if the first and last digit cannot be zero?
The number of possibilities is 9 x 10 x 10 x 10 x 10 x 10 x 9 = 8,100,000.
