alleryଗୋଟିଏ ଡଙ୍ଗାର ବେଗ ସ୍ରୋତର ଅନୁକୂଳରେ 18 km/h ଏବଂ ସ୍ରୋତର ପ୍ରତିକୂଳରେ 10 km/h। ସ୍ଥିର ଜଳରେ ଏହାର ବେଗ କେତେ?
A8 km/h
B14 km/h
C16 km/h
D12 km/h
Answer & Solution
Correct answer: B. 14 km/h
ସ୍ଥିର ଜଳରେ ବେଗ ହେଉଛି ଉଭୟର ହାରାହାରି, (18 + 10) / 2 = 14 km/h।
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