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Question
The following consecutive readings were taken with a dumpy level and a 3 m staff on a continuous sloping ground: 0.425, 1.035, 1.950, 2.360, 2.950, 0.750, 1.565, 2.450 Which of the above readings are back–sights?  
,d MEih ysoy rFkk 3 eh- xt (staff) ls fuEufyf[kr Øfed ikB~;kad ,d yxkrkj <kyw tehu ij fy;s x;s gS%
0.425, 1.035, 1.950, 2.360, 2.950, 0.750, 1.565, 2.450 
mijksDr eas ls dkSu ls ikB~;kad i'pkoyksdu gS\
 
A.
0.425, 2.950, 0.750
B.
0.425, 2.360, 0.750
C.
0.425, 0.750
D.
0.425, 2.950, 0.750, 1.565
Answer ( Option C)

0.425, 0.750

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