A group of workers consisting of 30 men above 30 years of age, 15 females above 30 years of age, and 10 youth of age between 20-30 are paid standard hourly rates as follows:

Males.........................	80/per hour
Females......................	60/per hour
Youth...........................	40/per hour

In a normal working week of 40 hours, the group is expected to produce 2,000 units of output. During a week, the group consisting of 40 males, 10 females and 5 youth produced 1,600 units. They were paid wages @ `70/- for males, `65/- for females and `30/- for youth per hour. 4 hours were lost due to abnormal idle time. The Actual and Standard Hrs are as follows:

	Standard Hrs	Actual Hrs
Male	1200	1600
Female	600	400
Youth	400	200
	2200	2200

Calculate labour variances