alleryઈરા 20 km દક્ષિણ તરફ ચાલે છે, ડાબી બાજુ વળે છે અને 21 km ચાલે છે. તે પ્રારંભિક સ્થાનથી કેટલી દૂર છે?
A41 km
B29 km
C25 km
D31 km
Answer & Solution
Correct answer: B. 29 km
ડાબો વળાંક કાટખૂણો બનાવે છે, તેથી અંતર 400 વત્તા 441 નું વર્ગમૂળ છે, જે 29 km થાય છે.
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