Question
The difference between the squares of two consecutive numbers is 35 The numbers are:
Options:
A .  14,15
B .  15,16
C .  17,18
D .  18,19
Answer: Option C


The number be x and (x + 1) 
=> (x+1) 2 “ x2 = 35 
=> x2 + 2x +1-x2 = 35 
 => 2x = 34 or x = 17.



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