The standard output of product EXE is 25 units per hour in the manufacturing department of a company, employing 100 workers. The standard wage rate per labour-hour is `60. In a 42-hour week, the...

The standard output of product EXE is 25 units per hour in the manufacturing department of a company, employing 100 workers. The standard wage rate per labour-hour is `60. In a 42-hour week, the department produced 1,040 units of EXE despite loss of 5 per cent of time paid due to abnormal reasons. The hourly wage rates actually paid were `62, `60, and `57, respectively, to 10,30 and 60 of the workers. Compute relevant variances.