one tank have 550 liter oil 2/5 part oil is sold and 1/5 is poured from tank how many oil is remaining in the tank

You have 550 litres of oil. 1/5 is 0.2, so you can do 550 * 0.2 with a calculator to get 110.

110 * 2 = 220, so you sold 220 litres.
You also poured 110 litres out.
This means in total, you lost 330 litres.
550 - 330 = 220 litres remaining.

To find the amount of oil remaining in the tank, we can start by calculating how much oil was sold and poured out of the tank.

If the tank originally had 550 liters of oil, we can find the amount of oil sold by multiplying 550 by 2/5:

Oil Sold = 550 liters * 2/5
= (550 * 2) / 5
= 1100 / 5
= 220 liters

Next, we can find the amount of oil poured out of the tank by multiplying 550 by 1/5:

Oil Poured = 550 liters * 1/5
= (550 * 1) / 5
= 550 / 5
= 110 liters

To calculate the remaining oil, we subtract the amount sold and poured from the original amount:

Remaining Oil = Original Amount - Oil Sold - Oil Poured
= 550 liters - 220 liters - 110 liters
= 220 liters - 110 liters
= 110 liters

Therefore, there will be 110 liters of oil remaining in the tank.