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 Form 4 Mathematics Paper 1 Exam Revision Questions With Answers Set 2

A Jua Kali artisan divided the cost of manufacturing an article into the cost of materials, labour and general expenses in the ratio 6 : 3 : 1. The cost of materials has now increased by 35%, the cost of labour also increased by 18% while general expenses has decreased by 15%. Calculate the percentage increase in the total cost of manufacturing the article.

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