Question : Directions: Which number will replace the question mark (?) in the following number series? 24, 61, 122, 213, ?
Option 1: 337
Option 2: 334
Option 3: 340
Option 4: 343
Correct Answer: 340
Solution : Given: 24, 61, 122, 213, ?
Subtract 3 from the cube of consecutive natural numbers starting from 3, to get the required missing number in the series – 33 – 3 = 27 – 3 = 24 43 – 3 = 64 – 3 = 61 53 – 3 = 125 – 3 = 122 63 – 3 = 216 – 3 = 213 73 – 3 = 343 – 3 = 340
So, 340 is the required term in the given series. Hence, the third option is correct.
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Question : Directions: Which number will replace the question mark (?) in the following series? 37, ?, 61, 78, 97, 120, 149
Option 1: 48
Option 2: 42
Option 3: 51
Option 4: 60
Question : Directions: Which number will replace the question mark (?) in the following series? 57, ?, 62, 71, 87, 112, 148
Option 1: 61
Option 2: 60
Option 3: 58
Option 4: 59
Question : Directions: Which number will replace the question mark (?) in the following number series? 52, 42, 34, 28,?
Option 1: 24
Option 2: 22
Option 3: 26
Option 4: 28
Question : Directions: Which number will replace the question mark (?) in the following series? 28, 30, ?, 188, 754, 3772
Option 1: 120
Option 2: 62
Option 3: 60
Option 4: 122
Question : Directions: Which number will replace the question mark (?) in the following series? 160, 183, 213, 252, 303, ?, 446
Option 1: 367
Option 2: 361
Option 3: 379
Option 4: 333
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