Please help me with te answers to these questions:



1. Seats for A,B, C subjects are in ratio: 5:7:8. If they are incresed by 40%, 50% and 75%, what is the new ratio?



2. In how many ways can the letters of the word SOFTWARE be arranged so that the vowels always come together.



3. The difference between a two git number and the number obtained by interchanging the position of the digits is 36. What is the difference between the digits of the number.



4. in how many different ways a group of 4 men and 4 women can be formed out of 7 men and 8 women.