Mr. Greene bought some pens at a school supply store, including 15 blue pens.
60% of all the pens he bought were blue.
How many pens did Mr. Greene buy in all?

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rosebebo7615

24.12.2021

Mathematics

Value of thita is given u can get six trig funs as sin 90=1,cos90=0,tan90=infinity,cot90=0,sec90=infinity,cosec90=1..

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Mr. Greene bought some pens at a school supply store, including 15 blue pens. 60% of all the pens he bought were blue. How many pens did Mr. Greene buy in all?