allery100 km ଯାତ୍ରା ପାଇଁ କାର୍ର ବେଗ 20 km/h ଠାରୁ 25% ବଢ଼ାଯାଏ। କେତେ ସମୟ ବଞ୍ଚେ?
A1/4 ଘଣ୍ଟା |
B1/2 ଘଣ୍ଟା |
C1 ଘଣ୍ଟା |
D2 ଘଣ୍ଟା |
Answer & Solution
Correct answer: C. 1 ଘଣ୍ଟା |
ନୂତନ ବେଗ ଘଣ୍ଟା ପ୍ରତି 25 କିଲୋମିଟର ଅଟେ, ଯାତ୍ରା ସମୟ 100 ÷ 20 = 5 ଘଣ୍ଟାରୁ 100 ÷ 25 = 4 ଘଣ୍ଟାକୁ ହ୍ରାସ କରି 1 ଘଣ୍ଟା ସଞ୍ଚୟ କରେ |
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