Question-Answer:

A line AB between the stations A and B was measured as 348.28 m using a 20 m tape, too short by 0.05 m. What is the correct length of line AB?

• (a) 349.15 m
  
• (b) 348.41 m
  
• (c) 347.41 m
  
• (d) 346.15 m

Ans. (c)

giver
Designated length of tape L = 20m Incorrect length of tape,L' = 20 - .05 = 19.95 Measured length of line AB l' = 248.28 m
Let, True length of AB = l As we know, l×L = L'×l' = 20 × l = 248.28 × 19.95 = 347.41

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