Practice Problems

SAT, ACT, New SAT, PSAT and SAT Subject Test Practice Problems are provided for students of OptimalSATPrep.com and others.

A Ratio/Percent Problem for SAT/ACT/TJ Prep (Medium). Target Time. 20-35 seconds.In a lab, the number of gray mouse is

October 22, 2014

In a lab, the number of black mouse is 60 more than 3 times the number of gray mouse. If there are G gray mouse,

1. What % of all the mouse are gray?

2. What % of all the mouse are black?

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