The following facts have been extracted from the standard cost card for product X: 
   
                                                                                                       Rs./unit    
      Variable overhead
          4 machine hours @ Rs.8.00/hour                                               32.00
        2 labour hours @ Rs. 4.00/ hour                                                  8.00
        Fixed overhead                                                                         20.00
 During  October  20X7,  5,450  units  of  the  product  were  made  compared  with  a  budgeted production target of 5,500 units. The actual overhead costs incurred were: 
                
                                                                                                              Rs.

        Machine-related variable overhead                                                 176,000
        Labour-related variable overhead                                                   42,000
        Fixed overhead                                                                           109,000
 
The original number of machine hours was 22,000 and the real number of labour hours was
10,800. 
 
 Requirements: 
(a)    Measure  the  overhead  cost  variances  in  as much  detail  as  possible  from  the  data given
(b)    Describe  the meaning  of,  and  discuss  the  variable  overhead  variances  that  you have calculated.  .