SAT Prep: Test 2 Section 6 Part 5

[panda00303]

Number 15 seemed a little bit complicated with the method you were using.

[cma6math]

@panda00303, do you can see SV = QV - QS?

QS + SV = QV

SV = QV - QS (Subtract QS to both sides)

SV/QV = (QV - QS)/QV = QV/QV - QS/QV = 1 - 1/3 = 2/3

Does this help see number 15 better? If not, message me.

[Nandine2]

thank you