A gang of workers normally consists of 30 Skilled, 15 Semi Skilled and 10 Unskilled. They are paid at standard hours rates as under:

Skilled @ RO 0.80

Semi Skilled @ RO 0.60

Unskilled @ RO 0.40

The standard output of the gang was two units per hour.

During the week, the actual composition of the gang was 40 Skilled, 10 Semi Skilled and 5 Unskilled. The actual wages paid were RO 0.70, RO 0.65 and RO 0.30 respectively.

The gang was engaged for 100 hours during the week, which included 4 hours of abnormal idle time. The Actual output was 160 units were produced.

calculate labour variance

LCV

LRV

LEV

LITV

LMV

LYV