Filling alphabets REASONING?? #shorts

In a code language the following alphabets are coded in a particular way ? Which group of alphabets can be decoded from the following ? 710926

In a code language the following alphabets are coded in a particular way ? Which group of alphabets can be decoded from the following ? 450639

In a code languagc the following alphabets are coded in a particular way Which group of alphabets can be decoded from the following

In a code language the following alphabets are coded in a particular way ? Which group of alphabets can be decoded from the following ? 608175

All the words that can be formed using alphabets A,I,U,R are written as in a dictionary (no alphabets repeated).Then,the rank of the word RAHUL.is

What will come in place of the question mark(?) in the following alphabet series based on their positions in the English alphabet? DGH JMN ?VYZ

Find the missing alphabet in the figure.