Matrix
1 solved SSC CGL Quantitative Aptitude previous year questions on Matrix, each with the correct answer and a full explanation.
Q1
Study the given pattern carefully and select the number that can replace the question mark (?) in it. First row Second row Third row , ? (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding / subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)
✓ Correct answer: a) 23
ExplanationFirst row: -15, 11,43. (15 - 11) × 8 + 11 =43. 4 × 8 + 11 =43. 32 + 11 =43. 43 =43. Second row - 13, 8,48. (13 - 8) × 8 + 8 =48. 5 × 8 + 8 =48. 40 + 8 = 48 Third row: 9, 7, ? = (9-7)× 8+7 = 23 2× 8+7 = 23 Therefore, the correct answer is Option A (23).
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