This is a question from slot 1: How many three-digit numbers are greater than 100 and increase by 198 when the three digits are arranged in the reverse order? How is the answer 70?

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Answer 1

I wrote 7 , taking in to account only digits with 9 in middle

Answer 2

I wrote 7 , taking in to account only digits with 9 in middle

Answer 3

Thanks a lot

Answer 4

Thanks a lot

Answer 5

I messed up this one too, but the answer is 70. z-x = 2, and since both z and x != 0, it makes z = 3,4,5,6,7,8,9. Edit : 70 because y can take 10 values for every z and x pair.

Answer 6

I messed up this one too, but the answer is 70. z-x = 2, and since both z and x != 0, it makes z = 3,4,5,6,7,8,9. Edit : 70 because y can take 10 values for every z and x pair.

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This is a question from slot 1: How many three-digit numbers are greater than 100 and increase by 198 when the three digits are arranged in the reverse order? How is the answer 70?