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Q:

A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:

A) 90 cm	B) 1 dm
C) 1 m	D) 1.1 cm

Answer & Explanation Answer: B) 1 dm

Explanation:

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Filed Under: Volume and Surface Area

Q:

A large number of people in ward X of the city are diagnosed to be suffering from a fatal malaria type.

Courses of Action:

I. The city municipal authority should take immediate steps to carry out extensive fumigation in ward X.

II. The people in the area should be advised to take steps to avoid mosquito bites.

A) Only I follows	B) Only II follows
C) Neither I nor II follows	D) Both I and II follow

Answer & Explanation Answer: D) Both I and II follow

Explanation:

Clearly, prevention from mosquitoes and elimination of mosquitoes are two ways to prevent malaria. So, both the courses follow.

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Filed Under: Statement and Courses of Action

Q:

Just by seeing the signature of the bean how can you specity whether it is a Statefull of Stateless Session Bean?

Answer

The create method in a stateless bean cannot have arguments, and can only have a single method called create(). While create in Stateful bean can have arguments and could be any method starting with create string eg. create(arg1, arg2, ...). Although it is not compiler checked but in stateless bean the ejb Passivate() and ejb Active() methods has to be empty as these functions are never called by EJB container. As conceptually in stateful session bean we might need to store the clients information hence arguments in createare necessary. While in stateless bean we don't hence no arguments are necessary. It's intutive isn't intutive isn't. I my life I haven't seen such a futuristic server programming tool as EJB.

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Subject: Java

Q:

Buses are always punctual in city X. How long, at the most, will Mr. Roy have to wait for the bus ?

I. Mr. Roy has come to the bus stand at 9 A.M.

II. There is a bus at 10 A.M. and possibly another bus even earlier.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data in both the statements together are needed.

Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From both the given statements, we find that Mr. Roy reached the bus stand at 9 AM and a bus is sure to arrive at 10 AM. So. Mr. Roy has to wait for at the most one hour.

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Filed Under: Data Sufficiency

Q:

In a City, 35% of the population is composed of migrants, 20% of whom are from rural areas. Of the local population, 48% is female while this figure for rural and urban migrants is 30% and 40% respectively. If the total population of the city is 728400, what is its female population ?

A) 324138	B) 349680
C) 509940	D) None of these

Answer & Explanation Answer: A) 324138

Explanation:

Total Population = 728400

Migrants = 35 % of 728400 = 254940

$\therefore$ local population = (728400 - 254940) = 473460.

Rural migrants = 20% of 254940 = 50988

Urban migrants = (254940 - 50988) = 203952

Female population = 48% of 473460 + 30% of 50988 + 40% of 203952 = 324138

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Filed Under: Percentage

Q:

Which of the following city has highest historical monuments?

A) Punjab	B) Mumbai
C) Delhi	D) Hyderanad

Answer & Explanation Answer: C) Delhi

Explanation:

Delhi has highestnumber of historical monuments

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Filed Under: World History

Q:

To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of bucket is reduced to two-fifth of its present ?

A) 52.5	B) 62.5
C) 72.5	D) 82.5

Answer & Explanation Answer: B) 62.5

Explanation:

Let the capacity of 1 bucket = x.

Then, capacity of tank = 25x.

New capacity of bucket = (2/5)x

$\therefore$ Required no of buckets = 25x/(2x/5) = 62.5

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Filed Under: Simplification

Q:

A tank is 2/5 full. If 16 litres of water is added to the tank, it becomes 6/7 full. The capacity of the tank is:

A) 28 litres	B) 32 litres
C) 35 litres	D) 42 litres

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