Question
If  3  12  108  x   43200 Then, 47% of (x
+ 72)= ? In each of the following questions a number series is given. One term of the series is denoted by X. You have to calculate the value of  X and by using the value of  X, you have to replace the question mark (?) in the following questions :Solution
3 (× 4),  12 (× 9),  108 (× 16),  1,728  (× 25),  43,200 Hence, x= 1728 Hence, 47% of (x + 72) = 47/100 ×  (1,728 + 72) = 47/100 × 1,800 = 846
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