3. Silmon Corporation makes a product with the following standard costs: Standard Quantity Standard Price or Inputs......... or Hours Rate Direct materials .......... 4.9 grams $7.00 per gram Direct labor ............... 0.6 hours $14.00 per hour Variable overhead ...... 0.6 hours $4.00 per hour In June the company produced 4,300 units using 21,830 grams of the direct material and 2,680 direct labor-hours. During the month the company purchased 25,100 grams of the direct material at a price of $6.80 per gram. The actual direct labor rate was $14.60 per hour and the actual variable overhead rate was $3.90 per hour. The materials price variance is computed when materials are purchased. Variable overhead is applied on the basis of direct labor-hours. Required: a. Compute the materials quantity variance. b. Compute the materials price variance. c. Compute the labor efficiency variance. d. Compute the direct labor rate variance. e. Compute the variable overhead efficiency variance. f. Compute the variable overhead rate variance