Suntali bought a mobile phone and sold to Dhurmus at 10% loss. Dhurmus again sold it for Rs 6,750 at 25% profit. 1) Find the cost price of mobile for Dhurmus.
2) Find the cost price of mobile for Suntali.​

The mountain springs water company has two departments, purifying and bottling. the bottling department received 67,000 liters from the purifying department. during the period, the bottling department completed 65,000 liters, including 3,000 liters of work in process at the beginning of the period. the ending work in process was 5,000 liters. how many liters were started and completed during the period?