On the Subject of Algebra
“Why do we need to study algebra? We’ll never use it in real life...” Anybody else remember saying that?
- The module consists of a number pad and two screens.
- In three stages, the module displays an equation involving the variables a, b and c, respectively.
- Solve the equation for a, b or c and enter the answer to progress to the next stage.
- In each equation, the variables x, y and z may appear. Calculate their values using the columns of the following table:
|x = n||y = i − p||z = m + t × d|
|n = sum of digits in the serial number||i = number of indicators
p = number of ports
|m = number of modules
t = number of AA batteries
d = number of D batteries
|3 or more battery holders present?||+2||2 or fewer battery holders present?||−2||No battery holders present?||+3|
|RJ-45 port present?||−1||Serial port present?||+3||Parallel port present?||−6|
|Lit BOB indicator present?||+4||Unlit FRQ indicator present?||−5||Lit MSA indicator present?||+2|
|Serial number contains a vowel?||−3||Sum of the serial number digits is prime?||+4||Sum of the serial number digits is divisible by 3?||+1|