a bucket of 20 litres is 35% full. how many litres of water must be put into it so that it is 65% full

.35 * 20 = 7 liters in there now

.65 * 20 = 13 is what we want
so put in
13 - 7 liters

What are you doing you can not solve this questions

To find out how many liters of water must be added to the bucket, we can follow these steps:

Step 1: Calculate the current amount of water in the bucket.
The bucket is 35% full, which means it contains 35% of its total capacity. So, to find the current amount of water, we can multiply the total capacity (20 liters) by the percentage that is currently filled (35% or 0.35):
Current amount of water = 20 liters * 0.35 = 7 liters

Step 2: Calculate the desired amount of water in the bucket.
To determine the desired amount of water to make it 65% full, we need to calculate how much of the total capacity that represents. We can multiply the total capacity (20 liters) by the desired percentage (65% or 0.65):
Desired amount of water = 20 liters * 0.65 = 13 liters

Step 3: Calculate the difference between the current and desired amounts of water.
To find out how much additional water needs to be added, we can subtract the current amount of water from the desired amount of water:
Additional water needed = Desired amount of water - Current amount of water
Additional water needed = 13 liters - 7 liters = 6 liters

Therefore, 6 liters of water must be added to the bucket in order for it to be 65% full.