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1. It takes \(60\) days for \(10\) machines to dig a hole. Assuming that all machines work at the same speed, how long will it take \(30\) machines to dig the same hole?
Number of days \(=\)
2. Forty students say in a hostel. They had food stock for \(30\) days. If the students are doubled then for how many days the stock will last?
Number of days \(=\)