alleryइरा दक्षिणेकडे 20 km चालते, डावीकडे वळते आणि 21 km चालते. ती सुरुवातीच्या ठिकाणापासून किती अंतरावर आहे?
A41 km
B29 km
C25 km
D31 km
Answer & Solution
Correct answer: B. 29 km
डावे वळण हे काटकोनात असते, त्यामुळे अंतर 400 अधिक 441 चे वर्गमूळ म्हणजेच 29 km आहे.
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