A) 14
B) 15
C) 16
D) 17
Correct Answer: D
Solution :
Given \[P+Q=23\] \[P-Q=7\] \[2P=30\] \[P=15,\,Q=23-15=8\] If \[P\bot Q,\] \[R=\sqrt{{{P}^{2}}+{{Q}^{2}}}=\sqrt{225+64}=17\]You need to login to perform this action.
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