Q: What are all of the 3-digit numbers if the hundreds digit is greater than 7 the tens is 1 more than the hundreds digit and the ones digit is less than 2?

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875

It can be one of six numbers: 724, 643, 562, 427, 346, 265

The digit after the hundreds digit is 9 which is greater than or equal to 5, so add 1 to the hundreds digit: 14494 → 14500 to the nearest hundred.

421 and 842

411 =========================== Another response: This contributor says that there is no answer. The conditions cannot be satisfied, because the specifications are self-contradictory. A digit cannot be "one more than but not greater than ..." another digit. Note: The first answer, above the line, can't be a solution, because it violaes the condition that its "... hundreds digit and ones digit is the same ..." .

Related questions

There are 900 three-digit numbers, ranging from 100 to 999.

875

How many two digit numbers are there in which the tens digit is greater than the one’s digit ?

It can be one of six numbers: 724, 643, 562, 427, 346, 265

452, 894. None other that I can think of

Look at the digit in tens place. If it is 5 or greater, round the digit in hundreds place to the next higher digit. If the digit in tens place is less than 5, leave the digit in hundreds place as it is. Change all the numbers to the right of the hundreds place to zeros. 261 rounded to the nearest hundred is 300.

9218 9425

The digit after the hundreds digit is 9 which is greater than or equal to 5, so add 1 to the hundreds digit: 14494 → 14500 to the nearest hundred.

421 and 842

There are 45 of them.

411 =========================== Another response: This contributor says that there is no answer. The conditions cannot be satisfied, because the specifications are self-contradictory. A digit cannot be "one more than but not greater than ..." another digit. Note: The first answer, above the line, can't be a solution, because it violaes the condition that its "... hundreds digit and ones digit is the same ..." .

Ten.