# Q.4 In the following, state whether A = B or not:(iv) A = { x : x is a multiple of 10}, B = { 10, 15, 20, 25, 30, . . . }

Multiples of 10 are : 10,20,30,40,........ till infinite.

SO, A = {10,20,30,40,.........}

B = {10,15,20,25,30........}

Comparing elements of A and B,we conclude that elements of A and B are not equal.

Hence, A$\neq$ B.

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