Use the following information to answer the giv... - WAEC Accounting 1990 Question

Use the following information to answer the given question: SALES LEDGER CONTROL ACCOUNTS
(\begin{array}{c|c} & N & & N \ \hline \text{Balance b/d} & ? & \text{Discount allowed} & 968 \ \text{sales} & 21,610 & \text{Sales returns} & 942 \ \text{Acceptance dishonoured} & 542 & \text{cash received from customers} & ? \ & & \text{Balance c/d} & 13,740 \ \text{Total} & 34,743 & \text{Total} & 34,742
\end{array})
What is the total cash received from customers?