其它
James made a running plan for this week. He ran $4$ km on average for the three days, and ran an average of $6$ km for the next two dyas, and ran $18$ km in total for the remaining two days to complete his plan. How many kilometers are there in James\textquotesingle{} running plan? 
Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems 
$4\times3+6\times2+18=42$ km. 