Question

A group of workers normally consists of 60 men, 30 women and 20 boys. They are paid at standard hourly rates as under:

Answer 1

1. Labour cost variance =  R.s 33,000 (F)
2. Labour rate variance = R.s 33000 (F)
3. Labour efficiency variance = 0

Given:

Standard Number of men = 60

Standard Number of women = 30

Standard Number of boys = 20

Standard hour rate for men = R.s 280

Standard hour rate for women = R.s 160

Standard hour rate for boys = R.s 140

Weekly working hour = 40 hours

Expected unit = 5,000 units

Number of men in march week = 70

Number of women in march week = 25

Number of boy in march week = 25

Actual wage for men = R.s 270

Actual wage for women = R.s 165

Actual wage for boys = R.s 130

Actual units = 4,500 units

Find:

1. Labour cost variance
2. Labour rate variance
3. Labour efficiency variance

Computation:

Labour cost variance = [SC for AO] - AC

Labour cost variance =  [( 70 × 280) + (25 × 160) + (25 × 140)] - [(70 × 270) + (25 × 165) + (25 × 130)] × 40  

Labour cost variance = (27,100 - 26,275 ) × 40

Labour cost variance =  R.s 33,000 (F)  

Labour rate variance = (SR - AR) × AH worked

Labour rate variance = [(280 - 270)70 + (160 - 165)25 + (140 - 130)25]40

Labour rate variance = [700 - 125 + 250]40

Labour rate variance = [825]40

Labour rate variance = R.s 33000 (F)

Labour efficiency variance = (SH allowed - AH worked)SR

Labour efficiency variance = (0 - 0)SR

Labour efficiency variance = 0

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