Measure Exact 4litres using 2 jars
If you had an infinite supply of water and a 5 litre and 3 litre jar,
How would you measure exactly 4 Litres of water?
Note- No markings are present on jar
if the jar top to bottom same size then the answer is
first fill the water in three litre jar , and put that water in five litre jar and now mark the water level , after measuring fill the water full in that five litre jar, after that the empty three litre jar fill the water since the measurement reach in five litre jar , so now the water present in the jar 2 liters
Two times measure like that got 4 litres
You are saying we have to repeate two times?
But since we have 2 jars only, so where will you store 2 liters of water after first turn?
Step 1 : First, fill the 5 liter jug and then pour it into the 3 liter jug. The 5 liter jug now has only 2 liters left.
Step 2 : Next, empty out the 3 liter jug. Then, pour the 2 liters from the 5 liter jug to the 3 liter jug. So, now the 3 liter jug has 2 liters.
Step 3 : Fill the 5 liter jug again, and pour 1 liter into the 3 liter jug. Now, exactly 4 liters is present in 5 liters jar!
jug1 jug2
5 3
5 0 Pour from Jar1 to Jar2
2 3
2 0 Empty jar 2
0 2 Pour from Jar1 to Jar2
5 2 Pour from Jar1 to Jar2 – Only 1 liter can be poured
4 3 ———— 4 Liter —— left in jar1
Step 1: Fill the 3 litre jar first and then transfer it to the 5 litre jar
Step 2: then again fill the 3 litre jar and fill the remaining 5 litre jar(now 5 l jar is completely filled and you are left with 1 litre in 3 l jar)
Step 3:empty the 5 l jar and transfer 1 litre from 3l to 5l jar.
Step 4:fill the 3 litre jar again and transfer it to the 5 litre jar making it 4.
5 3
________
0 0
0 3
3 3
5 1
1 3
4 0
Your Answer
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