Find the value of x. If 1 cubic cm of brass weighs 8.4 gram
Answer: (3) 75
TA plate on square base made of brass is of length A x cm and 1 mm.
Then, the length = X cm, wide = X cm and width = 1 mm = 0.1 cm
1 cubic cm of brass weight = 8.4 gram
Therefore, 4725 gram = 4725/8.4 cubic cm
= 562.5 cubic cm
Then, the volume of a plate = 562.5 cubic cm X x X x 0.1
Square of X = 562.5/0.1
Square of X = 5625
Square root on both side,
X = 75 cm
Then, the value of X is 75 cm.
Hence, the answer is (3) 75 cm.