Rectify the following errors assuming that, the trial balance is already prepared and the difference was placed to suspense account:
(a) Sales book was undercast by Rs. 250.
(b) Purchases book was undercast by Rs. 120.
(c) Sales book was overcast by Rs. 130.
(d) Bills receivable book was undercast by Rs. 75.
(e) Purchases book was overcast by Rs. 35