Q.

A sample of clay was partially dried and then contained 50 % silica and 7 % water. The original clay contained 12 % water. Choose the correct statement(s): [All percentages are rounded off to nearest integer]

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a

The weight ratio of silica to other inert substances in the sample remains constant whether the sample is partially dried or completely dried. 

b

%  of silica in the original sample = 47

c

% silica = 60 if the sample is completely dried.

d

%  of other inert substances in the original sample = 41

answer is A, B, D.

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A sample of clay was partially dried and then contained 50 % silica and 7 % water. The original clay contained 12 % water. Choose the correct statement(s): [All percentages are rounded off to nearest integer]