If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is
A. 30°
B. 35°
C. 30°
D. 45°
Answer: Option C
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Which of the following methods of contouring is most suitable for a hilly terrain?
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B. Square method
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A. 750 mm × 900 mm
B. 600 mm × 750 mm
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Sir A and C Option is same. But why true answer is C why not A
1) 90 - 60 30' = 29 30' ~ 30
2)
i) 90 - (60 30' + 19 30') = 10
ii) 19 30' + 10 = 29 30' ~ 30