If these statements are all logical, then how many of them is(are) true?
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Do it like this
F i r s t statement said that:
I f it is r i g h t , then second is also r i g h t .
Assume the f i r s t one to be r i g h t .
S e c o n d statement said that:
I f it is w r o n g then the f i r s t statement will also be w r o n g
O r
I f s e c o n d is r i g h t , then the first one will also be r i g h t .
Now, I f s e c o n d is w r o n g only then f i r s t statement will be w r o n g otherwise it is right. But since we assumed f i r s t one to be r i g h t which guarantees the correctness of the s e c o n d statement, so s e c o n d statement is r i g h t . Therefore, it can be said from the s e c o n d statement that f i r s t one is right.