Q:

There were 24 studentsina class. One of them, who was 18 years old, left the class and his place was filled up by a new comer.Ifthe average of the class was thereby lowered by 1 month, the age of new comer is-

A) 14 years B) 15 years
C) 16 years D) 17years
 
Answer & Explanation Answer: C) 16 years

Explanation:

Let the age of new comer be x

Avg age decrease by 1/12 year ⇒24 X 1/12 = 18 –x

⇒x=16 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

1 1092
Q:

There were 35 studentsina hostel.Ifthenumber of studentsbe increased by 7, the expenditure on food increases by Rs 42 per day while the average expenditure of studentsis reduced by Rs 1. What was the initial expenditure on food per day?

A) Rs 432 B) Rs 442
C) Rs 420 D) Rs 400
 
Answer & Explanation Answer: C) Rs 420

Explanation:

Let the original avg expenditure be x

Total expenditure = 35x

⇒35x + 42 = (x-1) X 42

⇒35x + 42 = 42x –42

⇒7x = 84

⇒x = 12

So, initial expenditure = 12 X 35 = 420

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Filed Under: Average
Exam Prep: Bank Exams

2 1349
Q:

A man purchased a bullock and a cart for Rs 1800. He sold the bullock at a profit of 20% and the cart at a profit of 30%.His total profit was 155/6 %. Find the cost price of bullock.

A) Rs 650 B) Rs 750
C) Rs 900 D) Rs 800
 
Answer & Explanation Answer: B) Rs 750

Explanation:

CP of bullock and cart = 1800

Let price of bullock be x and cart be (1800 –x)

SP of bullock and cart = 1800 + 155/6 X 1800 = 2265

Also, 1.2x + 1.3 (1800 –x) = 2265

⇒1.2x –1.3x = -75

⇒x = 750

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

2 3605
Q:

A dishonest shopkeeper professes to sell his groceries at his cost price but uses a false weight of 900 grams for each kilogram. Find his gain percentage.

A) 91/9 % B) 100/9%
C) 100/11 % D) 95/9%
 
Answer & Explanation Answer: B) 100/9%

Explanation:

Shopkeeper sells at CP using weight of 900 gm instead of1 kg

So, 1000gm –900 gm = 100gm

⇒100/900 X 100

⇒100/9 %

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

5 7036
Q:

An article costs Rs 50 presently. The rate of inflation is 300%. What will be cost of this article after two years?

A) Rs 200 B) Rs 600
C) Rs 800 D) Rs 1000
 
Answer & Explanation Answer: C) Rs 800

Explanation:

A = P(1 + r/100)n   50(1 + 300/100)2   50(4)2  800

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Filed Under: Compound Interest
Exam Prep: Bank Exams

5 2218
Q:

There is certain relationship between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternatives/ relationship.

Contamination : Food :: Infection : ?

A) Diseases B) Body
C) Germs D) Microbes
 
Answer & Explanation Answer: B) Body

Explanation:

Contamination of food by germs is called infestation.Similarly, attack on body by germs is called infection.

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Filed Under: Analogy
Exam Prep: Bank Exams

0 1716
Q:

There is certain relationship between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternatives/ relationship.

Funk : Vitamins :: Curie : ?

A) Uranium B) Radioactivity
C) Photography D) Radium
 
Answer & Explanation Answer: D) Radium

Explanation:

The Curies Discover Radium. 

1898: __

Radium is discoveredby the husband-and-wife team of Pierre and MarieCurie.

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Filed Under: Analogy
Exam Prep: Bank Exams

0 1467
Q:

There is certain relationship between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternatives/ relationship.

Firm : Flabby :: Piquant : ?

A) Salty B) Pleasant
C) Bland D) Smell
 
Answer & Explanation Answer: C) Bland

Explanation:
Both words Firm : Flabby are opposite in meaning.
Similarly, Piquant means pleasantly sharp taste, spicy. Bland means tasteless. Both are also opposite in meaning.
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Filed Under: English
Exam Prep: Bank Exams

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