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Novosadov [1.4K]
3 years ago
14

How many palimdromic numbers is there between 300 and 400

Mathematics
2 answers:
blagie [28]3 years ago
8 0

A palindrome is something that reads the same forwards and backwards.

If the number is a palindrome and it's between 300 and 400, then the
last digit must also be a ' 3 '. 

So all we have left to fill in is the digit in the middle.

There are 10 possibilities for that one ... the digits ' 0 ' through ' 9 '.

So there are <em>10</em> palindromic numbers between 300 and 400.


Dimas [21]3 years ago
6 0
Palindromic is where if you flip the number around (123 would become 321) then it is the same so:
303
313
323
343
353
363
373
383
393
so there are 10
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Answer:

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120 seats    =      \frac{1}{5}

We know that a whole fraction sums to 1 so for example   \frac{1}{5} +\frac{4}{5} =\frac{5}{5} =1

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Multiply  both sides to make it a whole fraction

600 seats =     \frac{5}{5} =1

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