Waec Model Questions Vol1 2019 Geography Question 40
Practice objective / multiple choice question 40 from the 2019 Waec Model Questions Vol1 Geography examination.
A rock sample contains 40% quartz, 30% feldspar, 20% mica and 10% amphibole by volume. During metamorphism the following transformations occur: (i) quartz remains unchanged; (ii) 50% of feldspar converts to mica, the rest stays feldspar; (iii) 30% of the total mica (original plus that formed from feldspar) converts to garnet, the rest stays mica; (iv) all amphibole converts to garnet. What is the final proportion of garnet in the rock (expressed as a percentage to one decimal place)?
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About This Question
This is Waec Model Questions Vol1 2019 Geography Question 40. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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