Hi let us check friend Mukul's answer by carrying out the steps
First magnetic induction B = flux / area is to be found out. B = 2.4 x 10-5 / 0.2 x 10-4 = 1.2 T
Now permeability u = B / H
Given H = 1600 A/m, and found B = 1.2 T
So u = 7.5 x 10-4 H/m
CONGRATS! Friend Mukul is right
Now with susceptibility chi we have to follow u / uo = 1 + chi
uo = 4 pi x 10-7
By the by chi = 596 (nearly)
Here Singh goes wrong. I don't know why