Answer :

(i) Statement: If Mohan is a poet, then he is poor.

Contrapositive : If Mohan is not poor, then he is not a poet.

(ii) Statement: Only if Max studies will he pass the test.

Contrapositive : If Max does not study, then he will not pass the test.

(iii) Statement: If she works, she will earn money.

Contrapositive : If she does not earn money, then she does not work.

(iv) Statement: If it snows, then they do not drive the car.

Contrapositive : If then they do not drive the car, then there is no snow.

(v) Statement: It never rains when it is cold.

Contrapositive : If it rains, then it is not cold.

(vi) Statement: If Ravish skis, then it snowed.

Contrapositive : If it did not snow, then Ravish will not ski.

(vii) Statement: If x is less than zero, then x is not positive.

Contrapositive : If x is positive, then x is not less than zero.

(viii) Statement: If he has courage he will win.

Contrapositive : If he does not win, then he does not have courage.

(ix) Statement: It is necessary to be strong in order to be a sailor.

Contrapositive :If he is not strong, then he is not a sailor

(x) Statement: Only if he does not tire will he win.

Contrapositive : If he tries, then he will not win.

(xi) Statement: If x is an integer and x2 is odd, then x is odd.

Contrapositive : If x is even, then x2 is even.

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