What is the respective ratio between number of students studying MCA and B.Tech. together from institute ‘Y’ and the number of students studying B.Tech from institute ‘Z’ ?

Number of students studying M.Sc. and PGDBM together from institute ‘X’ is approximately what percent to the total number of students studying these two courses together from all three institutes ?

What is the difference between total number of students studying all six courses together from institutes ‘X’ and ‘Z’ ?

Number of students studying MMS from institute ‘X’ is what percent to the total number of students studying all six courses together from the same institute ?

What is the ratio between total number of students studying MCA from all three institutes together and the total number of students studying M.Sc. from all three institutes together ?

Ganesh’s monthly income is ⅘th of suresh’s monthly income. The respective ratio between Suresh’s and Sunil’s monthly income is 13:17. Sunil spends 12% of his monthly income on food expenses which is INR 8,160/-. What is the annual income of Ganesh ?