- A21
- B24
- C68
- D27
Step-by-Step Solution
All regions add up to 92: , so . 21 subtracts the centre twice, 68 is the sum of the known parts, and 27 forgets to subtract the centre 3.
Answer: B) 24
A cyber-café in Ranchi noted which services its 92 customers used on Monday. Every customer used at least one service. What number replaces the question mark?
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