Given 3 jabs A,B,C with capacities 10L 8L 5 L
You can get water from tap or pour away the water in the jar
1. How do you get 9L in jar A?
2. How do you get 7L in jar B?
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Answer Posted / g. madhava kanth
Fill all 3 jars 10L, 8L, 5L. lets call them J1, J2, J3.
Now throw half from 10L or J1, it will be 5L.
Take 8L or J2 and remove half water by putting into J1.
J1 has 5L in it which will make it to 9L (which you want) and J2 to 4L.
Put J1 away. Now remove half water from J2, now J2 will be having 2L.
Take J3 and fill all 5L into J2, which will bring J2 to 7L.
I feel this is easy because you just have to remove half from each jar which does not require any accurate measurements if you are given plain jars
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