OG 2016 Tracker >>> OG2016 Problem Solving Video Solutions (OG Practice)



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OG2016 PS Practice #156.
David has d books, which is 3 times as many as Jeff and A as many as Paula. How many books do the three of them have altogether, in terms of d ?
`5/6`d
`7/3`d
`10/3`d
`7/2`d
`9/2`d

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