উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।
ব্যাখ্যা ও সঠিক সমাধান
উত্তর:
2.5 kg
Weight of container + weight of totally filled water = 18.5 kg
Weight of container + weight of 1/4 th filled water = 6.5 kg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
[Subtraction] Weight of the 3/4th [1 - 1/4 = 3/4] filled water = 18.5 - 6.5 = 12 kg
So, weight of fully filled water = 12 x 4 / 3 = 16 kg
Therefore, weight of the container = 18.5 - 16 = 2.5 kg