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Question

What should be added to 78 to get 49?

A
7295
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B
9572
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C
7295
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D
9572
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Solution

The correct option is B 9572
Let the number to be added be x.
Then, 78+x=49x=49(78)=49+78 [Since (78)=78]=(32+63)72=9572
Hence, the required number is 9572.

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