Og 12 question 200
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OG12 -> problem solving -> question 200
This is a question with clear reference to the concept 'percents' as mentioned in og. But this question has not been included in either the easier or tougher questions of official guide problem matrix mentioned in strategy guide fractions decimals and percents.
I think this question should be included in the official guide problem solving list of strataegy guide 2 ( fractions decimals and percents ) than in any other manhattan math strategy guide.