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SSC CGL Tier 1 :: QA Test 4
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1 .
[ A ]    85° right
[ B ]    50°
[ C ]    45°
[ D ]    90°
Answer : Option A
Explanation :
We know that, the triangle of same segment of a circle makes an equal angles.
∴ ∠XBY = ∠XAY= 45°
In ∆BXY, ∠BXY+ ∠XBY+ ∠BYX= 180°
$\implies$ 50° + 45° + ∠BYX = 180° (∵ ∠BXY= 50°)
$\implies$ ∠BYX = 180° – 95° = 85°
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