riyapauk Active 4 years agoTopics: 0Replies: 1☆ProfileForumsTopics StartedReplies CreatedEngagementsForum Replies CreatedViewing 1 post (of 1 total)AuthorPosts November 14, 2019 at 2:11 pm #552644 riyapaukMemberTopics: 0Replies: 1☆Sir, on the same question how did they calculate the cost of chemical x? They got 300000*1.60=480000AuthorPostsViewing 1 post (of 1 total)