If each consonant in the word GRAVITY is changed to the letter immediately preceding it in the English alphabetical order and each vowel is changed to the letter immediately succeeding it in the English alphabetical order. How many consonants are present in the new group of letters thus formed?
An amount is divided between two friends in the ratio 4 : 7. If the second part is โน6 more than the first, then the difference in amount between two friends is: