```                   the four digit no. 2652 is such that any two consecutive digits from it make a multipleof 13. another no. n has this same property, is 100 digits long and begins in a 9. the last digit of n is ? pls explain how this type of Qu are solved ?
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3 years ago

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```                    such questions are solved by pure logic.
there is no set formula for them
now
which digit should come after 9
1?
right
and after 1
3
after 3?
9
after 9?
1..
so the series continues
the number is
9139139139.........upto hundred digits.
the 99th digit would 3
and hundredth? well it should be 9 right??
simple!!

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3 years ago