Find the number of ₹ 2000 and ₹ 50 notes in ₹ 4400.
Sheela went to a bank to withdraw ₹ 2000. She asked the cashier to give her ₹ 50 and ₹ 100 notes only. Meena got 25 notes in all. Find how many notes of ₹ 50 and ₹ 100 she received.