IPCC tax paper Review

I have not calculated the value of taxable serivce.

but i have correctly calculated the amount that is inclusive of service tax those questions are of 4 marks 

i have not applied the formula for calculating the value of taxable service.

hw much i will get?

do they give full marks on questions attempted correctly in costing FM or they deduct?

I knw that i have attempted questions of 60 marks correctly so how much i will get?