Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
24, 625, 26, 729, 28, 841, ?
Option 1: 961
Option 2: 900
Option 3: 29
Option 4: 30
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Correct Answer: 30
Solution :
Given:
24, 625, 26, 729, 28, 841, ?
The numbers are in sequential order and every other number is the square of the next number in the series, starting from the second number –
24; (25)
2
= 625; 26; (27)
2
= 729; 28; (29)
2
= 841; 30
So, 30 is the missing number of the series. Hence, the fourth option is correct.
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