Mathematics
Medium
Question
Total area of the 64 small squares of aches board is 400cm2. There is 3cm wide border around the chess board. What is the length of each side of the chess board?
A
17cm
B
20cm
C
23cm
D
26cm
✓ Official correct answer
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A
17cm
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B
20cm
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C
23cm
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D
26cm
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