Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 426, 423, 414, 387, 306, ?
Option 1: 62
Option 2: 64
Option 3: 65
Option 4: 63
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Correct Answer: 63
Solution : Given: 426, 423, 414, 387, 306, ?
Subtract consecutive powers of 3 from each term to get the next term of the series – 426 – 31 = 426 – 3 = 423; 423 – 32 = 423 – 9 = 414; 414 – 33 = 414 – 27 = 387; 387 – 34 = 387 – 81 = 306; 306 – 35 = 306 – 243 = 63
So, 63 is the missing number of the given series. Hence, the fourth option is correct.
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Question : Directions: Which number from among the given options can replace the question mark (?) in the following series? 361, 306, ?, 208, 165, 126
Option 1: 235
Option 2: 216
Option 3: 298
Option 4: 255
Question : Directions: Which number from among the given options can replace the question mark (?) in the following series? 12, (?), 82, 123, 168, 217
Option 1: 63
Option 2: 45
Option 3: 51
Option 4: 42
Question : Directions: Which number from among the given options can replace the question mark (?) in the following series? 49, ?, 82, 101, 115, 134
Option 1: 68
Option 2: 71
Option 3: 69
Option 4: 62
Question : Directions: Select the letter cluster from among the given options that can replace the question mark (?) in the following series. AGMQ, BHLP, CIKO, ?
Option 1: JJKL
Option 2: DJMP
Option 3: DJJN
Option 4: TOKC
Question : Directions: Select the letter cluster from among the given options that can replace the question mark (?) in the following series. IBTW, JCSV, ?, LEQT
Option 1: JCCS
Option 2: IBWP
Option 3: KDTW
Option 4: KDRU
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