CAT 2000 — QA Question 54
Two full tanks, one shaped like a cylinder and the other like a cone, contain jet fuel. The cylindrical tank holds 500 litres more than the conical tank. After 200 litres of fuel has been pumped out from each tank the cylindrical tank contains twice the amount of fuel in the conical tank. How many litres of fuel did the cylindrical tank have when it was full?
Answer & solution
Correct answer: 1200
- A
700
- B
1000
- C
1100
1200
Let the volume of the cylindrical tank be x.
∴ Volume of the conical tank = x − 500
When 200 litres of fuel is pumped out of each tank, the amount in the cylindrical tank is twice that in the cone.
∴ (x − 200) = 2(x − 500 − 200)
Solving this equation, we get x = 1200
∴ The cylindrical tank had 1200 litres of jet fuel when it was full.
Hence, option (d).