TJ Prep Problems

TJ Prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.

An Arithmetic Problem for TJHSST Admissions Exam/HSPT/SSAT Prep (Medium). Target Time. 15-35 seconds.

March 22, 2015

If the total value of online sales on Black Friday sales in 2016 decrease by 10% and the total value of Cyber Monday sales increase by 15%, the ratio of Cyber Monday sales to Black Friday sales in 2016 will be how many times the ratio in 2015?

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