CTET Solved Paper - UPTET Feburary 2016
PART IV
Mathematics
- Option : C
- Explanation : Let the required angle be x.
Then, (180° - x) = 3 x (90° - x)
180° - x = 270° - 3x
2x = 90°
x = 45°
- Option : C
- Explanation : Required area = [45 + (2 x 2.5)] x [30 + (2 x 2.5)]- 45 x 30
= [45 + 5] x [30 + 5] - 1350
= 50 x 35 - 1350
= 1750 - 1350
= 400m2.
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