MathRevolution wrote:
[GMAT math practice question]
The squares of two consecutive positive integers differ by 55. What is the smaller of the two integers?
A. 27
B. 29
C. 30
D. 32
E. 35
Let smaller term = x
Next consecutive term = x+1
So now as per given, "The squares of two consecutive positive integers differ by 55"
\([m](x-1)^2\)[/m] - \(x^2\) = 55
just expand
this to get x = 27
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Quote which i can relate to.
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