Problem Solving

What does it mean to be a "greater" ratio? I could see it as two ways: 1) the greater number when the ratio is put in fraction form or 2)the ratio with the greatest difference between numbers

If P1 and P2 are the particles and R1 and R2 are the numbers of radioactive particles in Reactor 1 and Reactor 2, respectively, the ratio of the particles to the number of radioactive particles is greater for which of the two reactors?
(1) P1>P2
(2) R2>R1

I get how it works. To solve:

Rephrase Question: Is P1/R1 > P2/R2? or is P1R2>P2R2?
1) INS
2)INS

1 and 2) P1>P2 x R2>R1 = P1R2 > P2R1 SUFFICIENT

A ratio is just a number. A ratio of 2:5 is just 0.4. A greater ratio just means a ratio with a greater numerical value (the result of the fraction).