PRP: Percents, Ratios, Proportions

PRP – Percent, Ratio, & Proportion (& maybe fractions)

The SAT used to be full of PRP problems, but in studying all eight sample tests in the BBP (last night watching Ohio State roll over Iowa), I have found that there are only two or three of these types of questions on the new SAT.

I am not absolutely sure that all future SAT’s will have the same proportion of problems as the BBP, but it is a pretty good guess. I’ll know more in the future as I keep taking the tests that allow me to buy the actual test booklet, but that will be of little help on Oct. 14^th.

These problems are very easy & a great place to score. They are almost all in the medium section, the one section that we are all targeting to get 100%. They can be “tricksie,” so it will pay dividends to look over the following examples and know how to do them cold & quickly – but don’t rush. There are most certainly traps in the answer choices – they will put in the most common arithmetic mistakes as answer choices.

PRP ?’s from the BBP:

Test #1
Page Question
397 8
410 10
425 10

Test #2
460 6
472 6
491 6

Test #3
548 3
550 12

Test #4
582 3
587 19

Test #5
652 1
680 3
680 5

Test #6
720 13
747 15

Test #7
778 13
796 19

Test #8
843 16
870 12