If 5 packets of tea cost rs 800how many packets of tea can be purchased for Rs 1280?

If 5 packets of tea cost Rs 800, then the cost of one packet is Rs 800 / 5 = Rs 160. To find out how many packets can be purchased for Rs 1280, divide Rs 1280 by the cost of one packet: Rs 1280 / Rs 160 = 8 packets. Therefore, 8 packets of tea can be purchased for Rs 1280.