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ramesh bairwa

· started a discussion

· 1 Months ago

a (Question: 220126.0 )

solution?

Question:
A cubic metre of gold is extended by hammering so as to cover an area of 5 hectares. Find the thickness of the gold.
Options:
A) 0.0002 m 
B) 0.0003 m
C) 0.00002 m
D) 0.00004 m
Solution:
Ans: (c) Old volume    = new volume

1 cube m                     = 50000 × thickness

thickness                     = \(\cfrac{1}{50000}\)  m = 0.00002m

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