question: distance:time:speed
choices.label: A B C D
choices.text: intensity of pressure:area:force power:current:voltage principal:interest rate:interest original price:discount:current price
explanation: "distance" equals "time" multiplied by "speed". "intensity" is equal to "force" divided by "area". "power" equals "current" times "voltage". "principal" is equal to "interest" divided by "interest rate". "original price" is equal to "current price" divided by "discount".
relation: distance time speed R3.10
relation: intensity of pressure area force R3.10
relation: power current voltage R3.10
relation: principal interest rate interest R3.10
relation: original price discount current price R3.10