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The capacity of the river tanker R is 50 percent greater than the capa

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The capacity of the river tanker R is 50 percent greater than the capa  [#permalink]

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New post Updated on: 11 Oct 2016, 01:28
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The capacity of the river tanker R is 50 percent greater than the capacity of the sea-going tanker S. How many more gallons of oil are currently in tanker R than in tanker S?

(1) Tanker R is 90 percent full; tanker S is 40 percent full.
(2) When full, tanker R contains 40,000 gallons of oil.

Originally posted by grantcke on 11 Oct 2016, 00:59.
Last edited by Bunuel on 11 Oct 2016, 01:28, edited 2 times in total.
Edited the question.
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Re: The capacity of the river tanker R is 50 percent greater than the capa  [#permalink]

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New post 11 Oct 2016, 01:29
Capacity of R = 2S

1) R is 90 percent full n S is 40 percent full. So insufficient as we don't known how much oil is there in R and S. So A is insufficien

2) again R 100 % is 40000 but no information about S so again insufficient

Combining both R and S ...S has 16000 and R capacity is 60000 and so we can get 90 percent of 60000 hence sufficient.

Answer is C.

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Re: The capacity of the river tanker R is 50 percent greater than the capa  [#permalink]

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New post 11 Oct 2016, 01:32
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grantcke wrote:
The capacity of the river tanker R is 50 percent greater than the capacity of the sea-going tanker S.
How many more gallons of oil are currently in tanker R than in tanker S?

1. Tanker R is 90 percent full; tanker S is 40 percent full.
2. When full, tanker R contains 40,000 gallons of oil.


Let the Capacity of tanker S = 2V
Capacity of tanker R = 3V

As per statement 1 : Currently, volume of Oil in R = 2.7V (90% full)
Volume of Oil in S = 0.8V (40% Full)

Difference of Oil in two = 1.9V. We don't know the value of V , hence INSUFFICIENT.

As per statement 2, 3V = 40,000. No information on the Oil present in R or S. Hence, Insufficient.

Combining, Using statement 2, we can find out V, which when substituted to Statement 1, will give us the value of 1.9V. Hence, sufficient. Answer C.
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The capacity of the river tanker R is 50 percent greater than the capa  [#permalink]

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New post 12 Jul 2018, 08:58
niks18 pikolo2510 pushpitkc amanvermagmat chetan2u

What is incorrect in below approach?
Quote:
The capacity of the river tanker R is 50 percent greater than the capacity of the sea-going tanker S. How many more gallons of oil are currently in tanker R than in tanker S?


R = 1.5* S

R - S = x gal , what is x?

Quote:
(1) Tanker R is 90 percent full; tanker S is 40 percent full.

(1) This statement talks about %tages and I am dealing with finite numbers in question stem, Insuff

Quote:
(2) When full, tanker R contains 40,000 gallons of oil.

(2) 100% of R = 40 k gal , So I know R is 40k gal, from main Q I can get S. Suff.

In case of abhimahna s approach too, St 2 gives a linear eq in V, and I can find R and S from V
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Re: The capacity of the river tanker R is 50 percent greater than the capa  [#permalink]

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New post 13 Jul 2018, 19:36
adkikani wrote:
niks18 pikolo2510 pushpitkc amanvermagmat chetan2u

What is incorrect in below approach?
Quote:
The capacity of the river tanker R is 50 percent greater than the capacity of the sea-going tanker S. How many more gallons of oil are currently in tanker R than in tanker S?


R = 1.5* S

R - S = x gal , what is x?

Quote:
(1) Tanker R is 90 percent full; tanker S is 40 percent full.

(1) This statement talks about %tages and I am dealing with finite numbers in question stem, Insuff

Quote:
(2) When full, tanker R contains 40,000 gallons of oil.

(2) 100% of R = 40 k gal , So I know R is 40k gal, from main Q I can get S. Suff.

In case of abhimahna s approach too, St 2 gives a linear eq in V, and I can find R and S from V


Hi adkikani

Statement 2: gives you the full capacity of container R & S. But the question asks you to find the difference in quantity held by two containers. It is not necessary that both the containers are filled to their full capacity. This is where Statement 1 comes into picture. Statement 1 provides you with the information of "filled" capacity. Hence answer must be C. Re-read the question.
Re: The capacity of the river tanker R is 50 percent greater than the capa &nbs [#permalink] 13 Jul 2018, 19:36
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