Mohit, Raj, Kartik, Varun and Rajat spend some of their pocket money as given below
I. Mohit spends Rs. 100 more than Raj.
II. Varun spends Rs. 50 less than Kartik.
III. Rajat spends twice as much as Mohit.
IV. Kartik spends Rs. 400.
V. Raj and Varun spends the same amount.
If these statements are true only one of the sentences below must be true. Identify it.