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two tanks

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by sumasajja » Sat Jul 23, 2011 8:29 am
two tanks x and y are filled to capacity with jet fuel .tank x holds 600gallons more than tank y.if 100 gallons of fuel were to be pumped from each tank,tank x would contain 3 times as much fuel as tank y.what is the total number of gallons of fuel in the two full tanks?
a] 1400
b] 1200
c] 1000
d] 900
e] 800
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by knight247 » Sat Jul 23, 2011 9:04 am
Capacity of tank X- Capacity of tank Y=600
X-Y=600.......(1)

After removal of 100G from each tank

Tank X would contain (X-100) G
Tank Y would contain (Y-100) G

Given that

(X-100)=3(Y-100)
X-100=3Y-300
X-3Y=400......(2)

Solving 1 and 2
Y=100
X=700
Total=800 Hence E
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by sumasajja » Sat Jul 23, 2011 4:12 pm
thanks for giving an idea of how to solve the problem.....but the answer to the question is a] 1400
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by MBA.Aspirant » Sat Jul 23, 2011 4:30 pm
sumasajja wrote:two tanks x and y are filled to capacity with jet fuel .tank x holds 600gallons more than tank y.if 100 gallons of fuel were to be pumped from each tank,tank x would contain 3 times as much fuel as tank y.what is the total number of gallons of fuel in the two full tanks?
a] 1400
b] 1200
c] 1000
d] 900
e] 800

tank X = y + 600

tank Y = y

y+500/y- 100 = 3

y+500 = 3y-300

y= 400


total capacity = 400+600+400 = 1400
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by sumasajja » Sat Jul 23, 2011 5:23 pm
k now its seems to b meaningful for me ....thanks 4 d replies
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