alleryସ୍ଥିର ଜଳରେ 8 km/h ବେଗ ଥିବା ଏକ ଡଙ୍ଗା 2 km/h ସ୍ରୋତ ସହିତ 30 km ଯାଏ। ସ୍ରୋତର ଅନୁକୂଳ ଯାତ୍ରା ପାଇଁ କେତେ ସମୟ ଲାଗିବ?
A2 hours
B5 hours
C3 hours
D4 hours
Answer & Solution
Correct answer: C. 3 hours
ସ୍ରୋତର ଅନୁକୂଳରେ ବେଗ ହେଉଛି 10 km/h, ତେଣୁ 30 / 10 = 3 hours।
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