please answer this question fast
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1
Step-by-step explanation:
Distance = speed × time
xy
(X+6)(y-4)=xy
xy-4x+6y-24=xy
xy-xy-4x+6y =24
-4x+6y=24
2x-3y=-12----(1)
so,(x-6)(y+6)=xy
xy+6x-6y=36
6x-6y=36
divided by6=>x-y=6---(2)
2x-2y=12
solve 1 and 2
2x-3y=-12
2x-2y=12
_________
-y=-24
y=24
y=24 in eq 1
2x-3(24)=-12
2x-72=-12
2x=-12+72
2x=60
X=60/2
X=30
speed of the train = 30km/hr
time taken by train=24 hours
xy=30×24=720 km
2x-3y=-12
2(30)-3(24)=-12
60-72=-12
-12=-12 (get cancelled )
==>1 is the final answer
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