Compute the following variances from the data given below : 

(a) Total sales margin variance

 (b) Sales margin volume variance

 (c) Sales margin price variance

 (d) Sales margin quantity variance 

(e) Sales margin mix variance.

Product Budgeted quantity (units) A B 240 160 Actual quantity (units) 400 200 Budgeted sale price per unit (Rs.) 50 25 Actual sale price per unit (Rs.) 45 20 Standard cost per unit (Rs.) 30 15