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Q17) What comes in place of '?' 11, 11, 26, 26, 41, 41, 56, ?, ? 1) 56, 71 2) 71, 86 3) 71, 71 4) None of these Solution: Pattern used is 0, 15. Required Numbers are = 56 + 0 = 56, 56 + 15 = 71 Hence, option 1. Q18) What comes in place of '?' 32, 31, 32, 29, 32, 27, 32, ?, ? 1) 31, 32 2) 27, 32 3) 25, 23 4) 25, 32 Solution: Pattern used is -1, +1. Required Numbers are = 56 + 0 = 56, 56 + 15 = 71 Hence, option 4. Q19) What comes in place of '?' 87, 77, 97, 67, ?, 97, 47 1) 87 2) 77 3) 57 4) 107 Solution: This is a simple subtraction series in which a random number, 97, occupies every 3rd position. Required number = 67 - 10 = 57 Hence, option 4. Q20) What comes in place of '?' 62, 66, 63, 67, 64, ?, 65 1) 68 2) 61 3) 67 4) 62 Solution: Pattern used is +4, -3. Required Number is = 64 + 4 = 68 Hence, option 1. Q21) What comes in place of '?' F3, ?, D12, C24, B48 1) A1 2) G5 3) E6 4) None of these Solution: The letters decrease by 1; the numbers are multiplied by 2. Hence, option 3. Q22) What comes in place of '?' 664, 332, 340, 170, ?, 89 1) 162 2) 178 3) 174 4) 168 Solution: This is an alternating division and addition series: First, divide by 2, and then add 8. Required Numberis = 170 + 8 = 178 Hence, option 2. |