IMO C.
What is the OA?
Statements 1 and 2 together give us all the angles for the scalene triangle. To find the angle in question, substract 180 from its supplement.
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Source: Beat The GMAT — Data Sufficiency |
In my opinion correct answer is D - Each alone sufficient.
Let angle PRS = x, angle PQR = y question x-y = ?
Statement 1: angle QPR = 30
angle PRQ = 180-x
in Triangle PQR 30+y+180-x = 180 => x-y = 30 Suff
Statement 2: y+180-x = 150 => x-y = 30 Suff
Hence answer D
Experts, please comment.
Let angle PRS = x, angle PQR = y question x-y = ?
Statement 1: angle QPR = 30
angle PRQ = 180-x
in Triangle PQR 30+y+180-x = 180 => x-y = 30 Suff
Statement 2: y+180-x = 150 => x-y = 30 Suff
Hence answer D
Experts, please comment.
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sumit.sinha
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