If Darren bought 4 boxes of crackers, each containing 24 crackers, the total number of crackers that Darren bought is 24 * 4 = 96. Twice as many boxes of crackers as Darren bought is 2 * 4 = 8. If Calvin bought one box less than twice as many boxes of crackers as Darren, then Calvin bought 8 - 1 = 7 boxes of crackers. The total number of crackers that Calvin bought is 7 * 24 = 168. Together, Darren and Clavin bought 168 + 96 = 264 crackers.
This justifies what answer for what question? Q & A:
Darren bought 4 boxes of crackers. Each box contained 24 crackers. If Calvin bought one box less than twice as many boxes of crackers as Darren, how many crackers did they buy altogether?
264