Answers

2016-02-22T19:49:24+05:30
A colon precedes an explanation.A colon is also used with ratios.
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2016-02-22T19:56:58+05:30
A colon is used between independent clauses when the second sentence explains , illustrates,or expands on the first sentence ....
For eg:- He got what he worked for: he really earned that promotion...
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