Answer:
a. Actual labor Rate:
(AR-SR)*Actual hours = Labor rate variance
Labor rate variance/Actual hours = AR-SR
AR = (Labor rate variance/Actual hours) + SR
Actual rate= (-3,150/2,250) + 14.4
Actual rate = -1.4 + 14.4
Actual rate = 13 per hour
Note: Labor rate variance is -3,150, Standard rate is 14.4 per hour and Actual hours is 2,250.
b. Direct labour efficiency variance = Total direct labour budget variance - Direct labour rate variance
Direct labour efficiency variance = $1,170 - (-$3,150)
Direct labour efficiency variance = $4,320 Unfavourable
c. Direct Labour efficiency variance = (AH-SH)*SR
4,320 = (2,250 - SH)*14.4
2,250 - Standard hours = 4,320/14.4
2,250 - Standard hours = 300
Standard hours = 2,250 - 300
Standard hours = 1,950