For the following questions answer them individually
The constitutional authority vested with power of declaring Casts and Tribes as Scheduled Casts and Scheduled Tribes is the :
X, Y, Z started a business by investing 4000, 8000 and 10,000. 'X' withdraws from the
business after 6 months and "Z" withdraws after 9 months. At the end of the year the profit
is 1,80,000. What is the share of X, Y, Z in the profit respectively ?