Question

Find the number of integers greater than 7000

Answer 1

Number of integers greater than 7000;

Number of integers greater than 7000,

we have Number of five-digit integers = 5x4x3x2x1 = 120 A four-digit integer is greater than 7000 if thousandth place has any one of 7, 8 and 9.

Thus, thousandth place can be filled in 3 ways. The remaining three places can be filled from remaining four digits in 4P3 ways.

So, total number of four-digit integers = 3x 4P3 = 3x4x3x2 = 72 Total number of integers = 120 + 72 = 192

Hope this answer is useful for you...

Please make this answer as brainliest answer...

Thank u...!