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Quantitative Aptitude

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Question
28 out of 40
 

The ratio between the angle of quadrilateral is 5 : 7 : 8 : 10. One angle of parallelogram is 10 degree more than the second largest angle of quadrilateral. One angle of triangle is half of largest angle of quadrilateral while second angle of triangle is 20° less than smallest angle of parallelogram. What will be third angle of triangle?



A 52
B 104
C 26
D Cannot be determined
E None of these

Ans. A

Second largest angle of quadrilateral =

One angle of parallelogram = 96 + 10 = 106°

Largest angle of quadrilateral

Angle of triangle = 120/2 = 60°

Smallest angle of parallelogram = 180 – 106 = 74°

Second angle of triangle = 74 – 20 = 54

Third angle of triangle = 180 – (54 + 74) = 180 – 128 = 52

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