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Subject :IMO    Class : Class 7

Which of the following statements is true ?

(A) 1 and -1 are reciprocal of themselves

(B) Zero has no reciprocal

(C) The product of two rational numbers is a rational number

(D) All of the above

Ans 1:

Class : Class 7
A

Ans 2:

Class : Class 8
D

Ans 3:

Class : Class 7
D

Ans 4:

Class : Class 8
A

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