Question

"2,7,30,138,524,1557,3102" which number is wrong in the above series.​

Answer 1

all numbers are wrong because in Indian system we count three then two digits bacward and in international system we count three digits from backwards

Answer 2

ANSWER

IN ABOVE SERIES THE NUMBERS WHICH ARE WRONG IS - 7 AND 1557

EXPLANATION

ALL THE NUMBERS ARE EVEN NUMBERS AND 7 AND 1557 THEY BOTH ARE ODD NUMBERS

HOPE ITS HEPL U .....

PLZZZ MARK ME AS BRILLIANT.....

THANK U ......