JEE Main 2021 Chemistry question

1.22 g of an organic acid is separately dissolved in 100 g of benzene ( = 2.6 K kg ) and 100 g of acetone ( = 1.7 K kg ). The acid is known to dimerize in benzene but remain as a monomer in acetone. The boiling point of the solution in acetone increases by 0.17°C. The increase in boiling point of solution in benzene in °C is x. The value of x is. (Nearest integer) [Atomic mass : C = 12.0, H = 1.0, O= 16.0]