Latest TCS Aptitude Question SOLUTION: a car is filled with four and a half gallon of oil for full round trip.fuel is taken 1/4gallon more in going than coming.what is the fuel consumed in coming up?

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a car is filled with four and a half gallon of oil for full round trip.fuel is taken 1/4gallon more in going than coming.what is the fuel consumed in coming up?

Asked In TCS KOUSTAV DAS (12 years ago)

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Garima  (12 years ago)

It means while going up, it takes 1/4 gallon extra.
Keep 1/4 gallon extra for up hill route and divide the balance 4.25 gallon equally for two way journey.
So fuel consumed for downside journey = 4.25/2= 2.125 gallons.
fuel consumed for upside journey = 4.5 - 2.125 = 2. 375 gallons

Is this solution Helpfull? Yes (8) | No (3)  

Dhandayuthapani  (12 years ago)

car has 4and 1/2 gallon of oil =9/2
let goin be X
comin be X+1/4
so going and comin =9/2
X+X+1/4=9/2 X=17/8 coming =17/8+1/4 ans 19/8

Is this solution Helpfull? Yes (3) | No (4)  

Dhandayuthapani  (12 years ago)

car has 4and 1/2 gallon of oil =9/2
let goin be X
comin be X+1/4
so going and comin =9/2
X+X+1/4=9/8 solvin that ans 19/8

Is this solution Helpfull? Yes (2) | No (5)  

Catena  (12 years ago)

4.5 = coming + going
= x + ( x + 0.25x)
= 2.25x

=> x = 2

Is this solution Helpfull? Yes (2) | No (8)  

Subhradip Biswas  (12 years ago)

let for goin nd comin fuel reqd be 2x
2x=4.5 or x=2.25
now for goin it requires .25 gallon more.
so..x for goin=2.25+.25=2.5
so for coming fuel consumed=4.5-2.5= 2 gallons....

Is this solution Helpfull? Yes (2) | No (4)  

mukul  (12 years ago)

let x be coming fuel
(x+1/4)+x=4.5 => 2x+.25=4.5 => x=2.125 Ans.

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chintan Makwana  (12 years ago)

4.5 = coming + going
4.5= x + ( x + 0.25)
4.5= 2x+.25
4.5-.25=2x
4.25=2x
--->x=4.5/2=2.125
--->x=2.125
Now for going===>2.125+0.25=2.375

so ans is 2.375...

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Vinay  (12 years ago)

it said that fuel for going is 1/4 more than coming.
suppose for coming it take 'x'.
o for going=(x+x/4)
total fuel for round trip=x+(x+x/4)=9x/4
as given total fuel=4 nd half gallon=9/2
so 9x/4=9/2=>x=2;
so for coming it take 2 gallon.
for going=2.5

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