QUESTION $2$

For items $2\mathrm{.}1$ to $2\mathrm{.}5$ below state the name of the error which would not have an effect on the trial balance: $($write the answer only in your answer sheet provided, e$.$g$.$; $1.$ The error of omission$)$

$2\mathrm{.}1$ A sale to Mr$.$ Lulu of N$$5600$ was entered in both accounts as N$$6500$ in the correct ledger accounts.

$2\mathrm{.}2$ Payment of N$$5000$ to accounts payable Mr$.$ Xola was entered on the debit side of the bank account in error and credited to Mr$.$ Xola's account.

$2\mathrm{.}3$ Billing to Mr$.$ Ben of N$$15000$ was wrongly posted to Mr Benra's account.

$2\mathrm{.}4$ Office maintenance of $N$$$10000$ wrongly posted into the Machinery account.

$2\mathrm{.}5$ Purchases account was overcast by N$$20000$ and so was Sales account.