RRB NTPC Prelims Model Paper 5 with solutions

Question : 15 of 100

Marks: +1, -0

In the given figure, straight lines AB and CD intersect at O. If ∠ δ = 3 ∠ v , then ∠ v = ?

Solution:

∠ δ + ∠n = 180°
⇒ 3∠n + ∠n = 180°
⇒ 4∠n = 180°
⇒∠n =

182/4 = 45°

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