Question

Which of the following is not a Pythogorean Triplet.
A. (5,12,13)
B. (7,24,25)
C. (9,40,41)
D. (9,60,61)

• A. A
• B. B
• C. C
• D. D

Answer 1

The correct option is D D

A Pythagorean triplet satisfies the Pythagoras theorem.
Hence, we have,
$5^2+{12}^2=25+144=169={13}^2$
$7^2+{24}^2=49+576=625={25}^2$
$9^2+{40}^2=81+1600=1681={41}^2$
$9^2+{60}^2=81+3600=3681\ne 3721={61}^2$
Hence, D is not a Pythogorean triplet.