Answer
Since the insurance company has paid a claim of Rs. 4,00,00/- out of which Rs. 1,50,000/- can be assumed to be for stock destroyed, the amount recoverable against the godown would be Rs. 2,50,000/-. The cost of re-building the godown being Rs. 5,00,000/- (against which Rs. 2,50,000/- has been recovered from the insurance company), Rs. 2,50,000/- only needs to be debited to Building Repairs Account. If it is assumed that the excess amount spent is for extension of the godown; this amount should be capitalized.