Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row – 82, 91, 100
Second row – 63, 72, 81
Third row – 24, 33, ?
Option 1: 34
Option 2: 56
Option 3: 42
Option 4: 48
Correct Answer: 42
Solution :
In each row, add 9 to the first number to obtain the second number and add 9 to the second number to obtain the third number.
First row – 82, 91, 100→82 + 9 = 91; 91 + 9 = 100
Second row – 63, 72, 81→63 + 9 = 72; 72 + 9 = 81
Third row – 24, 33, ?→24 + 9 = 33; 33 + 9 = 42
So, 42 is the missing number. Hence, the third option is correct.
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