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Q: Study the given pattern carefully and select the number that can replace the question mark (?) in it. 15 9 144 18 12 ? 22 17 195
  • A. 188
  • B. 255
  • C. 180
  • D. 224
Correct Answer: Option C - Such as:– (15 + 9) × (15 – 9) = 144 -------(In row–I) (22 + 17) × (22 – 17) = 195 ------(In row-III) Same as, (18 + 12) × (18–12) = 180 -------(In row-II) Hence, 180 will be replaced the question marks.
C. Such as:– (15 + 9) × (15 – 9) = 144 -------(In row–I) (22 + 17) × (22 – 17) = 195 ------(In row-III) Same as, (18 + 12) × (18–12) = 180 -------(In row-II) Hence, 180 will be replaced the question marks.

Explanations:

Such as:– (15 + 9) × (15 – 9) = 144 -------(In row–I) (22 + 17) × (22 – 17) = 195 ------(In row-III) Same as, (18 + 12) × (18–12) = 180 -------(In row-II) Hence, 180 will be replaced the question marks.