Maths Important Quesions
1. Speed of a man in still water is 5 km/hr and the river is running at3km/hr. The total time taken to go to a place and come back is 10hours. What is the distance travelled?A.10 kmB.16 kmC.24 kmD.32 kmE.36 kmAnswer & ExplanationAnswer – D.32 kmExplanation :Down speed= 5+3= 8Up speed= 5-3=2Let distance travelled = X(X/8)+(X/2)= 10X= 16 kmTotal distance is 16+16=322. A boat running upstream takes 9 hours 48 minutes to cover acertain distance, while it takes 7 hours to cover the same…See More
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