Kinetic energy of particles of water in three vessels A,B,C are E_A,E_B and E_C respectively and E_AE_B E_C.Arrange the temperature T_A,T_B and T_Cof water in three vessels in increasing order.

Here you have not mentioned the order of energies that is whether it is E_a > E_b > E_c or E_a < E_b < E_c or any other order. We know that more is the temperature, more is the kinetic energy and vice-versa. Hence, if the order of kinetic energies is E_a > E_b > E_c, then the increasing order of temperatures in the three vessels will be T_c < T_b < T_a. On the other hand, if the order of kinetic energies is E_a < E_b < E_c, then the increasing order of temperatures will be T_a < T_b < T_c.