alleryସେହି ସମାନ ଡଙ୍ଗା (ସ୍ଥିର ଜଳରେ 8 km/h, 2 km/h ସ୍ରୋତ) ବର୍ତ୍ତମାନ ସ୍ରୋତର ପ୍ରତିକୂଳରେ 30 km ଅତିକ୍ରମ କରେ। ଏଥିପାଇଁ କେତେ ସମୟ ଲାଗିବ?
A3 hours
B6 hours
C5 hours
D4 hours
Answer & Solution
Correct answer: C. 5 hours
ସ୍ରୋତର ପ୍ରତିକୂଳରେ ବେଗ ହେଉଛି 6 km/h, ତେଣୁ 30 / 6 = 5 hours।
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