Multiple choice

Find out the wrong number in the following series. $7.5 \quad 57 \quad 295 \quad 1088 \quad 3570 \quad 7144$

  1. $57$
  2. $295$
  3. $1088$
  4. $3570$
  5. $7144$
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C Correct answer
Explanation

Pattern: (7.5×8-3)=57, (57×5+10)=295, (295×4-92)=1088✗, should be (295×4-87)=1093. The series follows ×8-3, ×5+10, ×4-87, ×2+2352, ×1+3574. 1088 breaks the ×4 pattern (should be 1093).

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