If two pants and three T-shirts cost Tk. 4000 and three pants and two T-shirts cost Tk. 3500, than how much does a pant cost?

Question: If two pants and three T-shirts cost Tk. 4000 and three pants and two T-shirts cost Tk. 3500, than how much does a pant cost?

Solution:
মনেকরি
১টি pant এর দাম = x টাকা
১টি T-shirt এর দাম = y টাকা

এখানে
2x + 3y = 4000 .......................(1)
3x + 2y = 3500 .......................(2)

From (1) × 2 - (2) × 3 ⇒
4x + 6y - 9x - 6y = 8000 - 10500
⇒ - 5x = - 2500
∴ x = 500

১টি pant এর দাম = 500 টাকা