The Square Area 69 Problem with solution is as follows :
Ques.  If the area of a square increases by 69% , then the side of the square increases by ?  

SOLUTION : The solution to the above problem is shown below
Answer: Option (B)
Explanation:
Let the area be 100 sq cm. So we can say that original side = 10 cm
Now 69% increase means New Area = 169 sq cm.
So new side = 13 cm
Difference between sides = 1310 = 3 So , 3 is 30% of original side Hence side of square increases by 30%
Hence, the answer is B. 30% 