X & Y are partners, they admit Z in their firm. On the admission of Z there was a Machinery with book value of ₹72000 out of which 1/3rd is taken by X for ₹30000 and balance is revalued at ₹57600. With what amount there will be total increase in value of machinery?

₹15600

The correct answer is option 4 i.e. ₹15600.

₹72000*1/3= 24000 which was taken by X for 30000
Remaining 72000-24000 = 48000 is revalued at 57600.
So, total increase is (57600-48000) = 9600 and (30000-24000) = ₹6000
= 9600+ 6000= ₹15600