M4maths Maths Puzzle Numerical Ability

the popilation of a town increased from 1,75,000 to 2,62,500 in a decade. the average percent increase of population per year ??

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M4maths Other Question

A five digit number has all non-zero different digits & decreasing arranged. Average of all the digits of the numbers is 5. The difference of number and the number formed by reversing the order of digits is 84942. Sum of all such possible digits are number ranking system