Question

2. Sudha bought an oil can and gave of the oil from the can to her neighbour. By the end of the month, she found that 3 of the oil in the can was left. Find what part 20 of the oil in the can she used in the month.​

Answer 1

Part used = 20 / 23 ≈ 0.8696

Explanation:

Oil used = Initial amount of oil - Amount left at the end of the month

Oil used = x - 3

Now, we are given that the oil used is 20 parts of the total oil. So we can set up the equation:

20 parts of oil = x - 3

To find "x," we can solve the equation for "x":

x = 20 parts of oil + 3

x = 23 parts of oil

So, Sudha bought 23 parts of oil initially. To find the part that she used in the month, we divide the oil used (20 parts) by the total amount initially (23 parts):

Part used = Oil used / Total amount

Part used = 20 / 23 ≈ 0.8696

Therefore, Sudha used approximately 0.8696 (or 86.96%) of the oil in the can during the month.