Explanation:

To find out which option is correct, let's calculate the required sales for the sixth month:

- Calculate total sales for 5 months:

Rs1,48,500 + Rs2,00,000 + Rs1,64,000 + Rs1,88,600 + Rs2,40,400 = Rs9,41,500

- Calculate total sales needed for 6 months to average Rs1,88,300:

6 months * Rs1,88,300 = Rs11,29,800

- Sales needed for the 6th month:

Rs11,29,800 - Rs9,41,500 = Rs1,88,300

- Check options:

- Option 1: Rs2,00,500

- Option 2: Rs1,88,300

- Option 3: Rs1,64,000

- Option 4: Rs1,90,020

- Correct Answer: The sales needed for the sixth month is highlighted as Rs1,88,300.