The sum of the perfect squares between 150 and 250 is:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 590
A perfect square is the square of a whole number. The squares that fall between 150 and 250 are found by squaring the numbers around \(\sqrt{150}\approx12.2\) and \(\sqrt{250}\approx15.8\).
The squares just outside the range (left out):
\(12^2=144\) is below 150
\(16^2=256\) is above 250
The squares between 150 and 250 (these are added):
\(13^2=169\)
\(14^2=196\)
\(15^2=225\)
Sum \(=169+196+225=590\)