Question

Choose the correct answer alternatives given.
After interchanging and , 6 and 9 which one of the following equation becomes correct?

A

8 7 9 + 2 6 = 21

B

9 8 2 + 6 3 = 67

C

7 21 3 + 6 9 = 27

D

6 4 5 + 4 9 = 31

Medium

Solution

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Correct option is B)

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