300o
240o
190o
150o
Correct answer is A
The bearing of x from y = 270o + θ
where θ + 50o = y
in △ OXY
O + X + Y = 180o
Where O = 40o + 30o = 70o
70o + 30o + y = 180o
y + 100o = 180o
y = 180o - 100o = 30o
θ + 50o = 80o
80o - 50o = 30o
The bearing of x from y = 270o + 30o = 300o
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