help me solve 2 multiple choice thanks

Poorly trained workers could have an unfavorable effect on which of the following variances? Labor Rate Variance - Yes; Materials Quantity Variance - Yes Labor Rate Variance - No: Materials Quantity Variance - No Labor Rate Variance - No: Material Quantity Variance - Yes Labor Rate Variance - Yes; Materials Quantity Variance - No Magno Cereal Corporation uses a standard cost system for its "crunchy pickle" cereal. The materials standard for each batch of cereal produced is 1.4 pounds of pickles at a standard cost of $3.00 per pound. During the month of August, Magno purchased 78,000 pounds of pickles at a total cost of $253,500. Magno used all of these pickles to produce 60,000 batches of cereal. What is Magno's materials quantity variance for August? $54,000 Unfavorable $19,500 Unfavorable $18,000 Favorable $1,500 Unfavorable