The standard overhead rate of a product is developed as follows:

Variable – Rs. 4 per unit

Fixed (budgeted production – 10,000 units) Rs. 6 per unit with standard time allowed for production of one unit of product is 5 hours. The following actual data are available for a month:

Production

9,600 units

Time taken

47,900 units

Overhead:

Variable

Rs. 38,500

Fixed

Rs. 60,500

Compute overhead variances.