Question

what is the answer
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Answer 1

Answer:

dd

Explanation:

ddd

Answer 2

HERE IS YOUR ANSWER

Step-by-step explanation: let the original speed of the train be X km/h

Increased speed%3DX+5 360/X -360/X+5

=D48/60 90/X -90/X+531/5 90(X+5) -90(X)/X2+5X

=1/5 450X+2250-450X

=X2+5X X2+5X-22503D0 X2+50X-45X

=D0 X(X+50)-45(X+50)

=0 (X+50) (X-45)

=0 X=45km/h.

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