Question

A train travels 480 km at a uniform speed. If the speed had been 10km/h more, it would have taken 4 hours less for the same journey, find the speed of the train?

Answer 1

Answer:

The cells of eukaryotic organisms have several distinguishing characteristics. Above all, eukaryotic cells are defined by the presence of a nucleus surrounded by a complex nuclear membrane. Also, eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm.

The cells of eukaryotic organisms have several distinguishing characteristics. Above all, eukaryotic cells are defined by the presence of a nucleus surrounded by a complex nuclear membrane. Also, eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm.

Step-by-step explanation:

The cells of eukaryotic organisms have several distinguishing characteristics. Above all, eukaryotic cells are defined by the presence of a nucleus surrounded by a complex nuclear membrane. Also, eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm.The cells of eukaryotic organisms have several distinguishing characteristics. Above all, eukaryotic cells are defined by the presence of a nucleus surrounded by a complex nuclear membrane. Also, eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm.

Answer 2

Answer:

let the speed of train is - x

then.

t1 = 480/x eqa-1

t2 = 480/x-10 equ-2

then it take 4 hours less than same journey

then ;

480/x -4 = 480/x-10

480x-4800-(4x)2+40x=480x

x2-10x-1200=0

x2-40x+30x-1200=0

x(x-40)+30(x-40)=0

(x+30) (x-40)=0

x=-30

x=40

Step-by-step explanation:

i hope you are understand