Top five career options after Class X #shorts #careersafterclassX #afterclassX #future

A faculty of KOTA Institute who has five classes per day, after taking the fourth class and before going for next class, drinks 500 ml of 90%(w//v) glucose solution. The number of glucose molecules taken by him is =Qxx10^(23) . Find the value of Q. (N_(A)=6.0xx10^(23))

Three boys of class X, four boys of class XI, and five boys of class XII sit in a row. The total number of ways in which these boys can sit so that all the boys of same class sit together is equal to a. (3!)^2(4!)(5!) b. (3!)(4!)^2(5!) c. (3!)(4!)(5!) d. (3!)(4!)(5!)^2