In the month of November, its first month of operations, Jayasinghe Inc. wrote cheques in the amount

Question:

In the month of November, its first month of operations, Jayasinghe Inc. wrote cheques in the amount of $12,600. In December, cheques in the amount of $9,500 were written. In November, $11,100 of these cheques were presented to the bank for payment and $9,900 were presented in December. What is the amount of outstanding cheques at the end of November and at the end of December?