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A man swims from A to B and back in 4.5 hrs. A block of wood when allowed to go with the stream from A to B takes 6 hrs. what is the ratio of the speed of the man in still water to that of the stream?

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how to delete account

hi i am not able to find my pack on my app...will you please help me. i bought ibps po pack of 199 rs. through lappy. but i am not able to find it on my phone.

what is the min time required to prepare for cat. And what a mentality is needed to crack it

is there any question papers of GRE ,TOFFIL and GMAT

plz upload both languages

validity of my course

In the country of four,there are four cities a,b,c,d.b is to the east of a,c is the south of b,d is to the west of c,& a is the north of d.the government wants to connect four cities by road such that person can go to other four cities also.at the same time minimum length of road.a to b,b to c,c to d,d to a,are equal to 10 know.what should be the minimum length of the road?

2×2×÷33÷6