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sathya

· started a discussion

· 1 Months ago

solution (Question: 113799.0 )

please explain solution sir ji

Question:

DIRECTIONS: What should come in place of the question mark (?) in the following question?


(?)2 + (79)2 = (172)2 — (88)2 - 8203

Options:
A) 96
B) 89
C) 83
D) 81
E)

None of these

Solution:
Ans: (e) None of these



(?)2 + (79)2 = (172)2 — (88)2 - 8203


(?)2  = (172)2 — (88)2 - 8203 - (79)2


(?)2 =29584-7744-8203-6241 = 7396


? =\(\sqrt{7396}\) =  86

kanhaiya jha

· commented

· 1 Months ago

(?)^2 + (79)^2 = (172)^2 — (88)^2 - 8203

(?)^2 = (172)^2 — (88)^2 - 8203 - (79)^2

(?)^2 =29584-7744-8203-6241 = 7396

? =√(7396) = 86
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