Which equation relates ITC to IRC?

Which equation relates ITC to IRC?

• A. ITC (%) = 1 - IRC
• B. ITC (%) = IRC - 1
• C. ITC (%) = IRC
• D. ITC = 100 - IRC

Answer: (A)

The main idea is that ITC and IRC are complementary parts of the whole. They always add up to 1 (or 100%). So ITC is the remaining portion after IRC is accounted for, which is expressed as ITC = 1 − IRC. When ITC is written as a percent and IRC is a decimal between 0 and 1, you can read the same relation as ITC (%) = 1 − IRC. For example, if IRC is 0.25, ITC is 0.75, i.e., 75%. The other forms would not reflect this complementary relationship and can lead to inconsistent or negative values.

The main idea is that ITC and IRC are complementary parts of the whole. They always add up to 1 (or 100%). So ITC is the remaining portion after IRC is accounted for, which is expressed as ITC = 1 − IRC. When ITC is written as a percent and IRC is a decimal between 0 and 1, you can read the same relation as ITC (%) = 1 − IRC. For example, if IRC is 0.25, ITC is 0.75, i.e., 75%. The other forms would not reflect this complementary relationship and can lead to inconsistent or negative values.