alleryକାର୍ଯ୍ୟ P ଏବଂ Q 4 ଏବଂ 6 h ନିଅ ଏବଂ ଏକତ୍ର ଚାଲିବ | R ଉଭୟ ପରେ 3 h ନେଇଥାଏ | ସର୍ବନିମ୍ନ ସମୁଦାୟ?
A9 h
B8 h
C7 h
D13 h
Answer & Solution
Correct answer: A. 9 h
P ଏବଂ Q ଏକତ୍ର ଚାଲିବା 6 ଘଣ୍ଟା ନେଇଥାଏ, ତା’ପରେ R ର 3 ଘଣ୍ଟା, ସମୁଦାୟ 9 ଘଣ୍ଟା |
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