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Q:

A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:

A) 12	B) 60
C) 72	D) 90

Answer & Explanation Answer: B) 60

Explanation:

Volume of water displaced = (3 x 2 x 0.01) = 0.06 cu.m.

Mass of man = Volume of water displaced x Density of water

= (0.06 x 1000) kg

= 60 kg.

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Filed Under: Volume and Surface Area

Q:

Example:Given an amount needed(future value) of $3300 in 4 years at an interest rate of 11% compounded anually,Find the present value and the amount of interest earned

A) 1126.19	B) 1237
C) 2863	D) 1892

Answer & Explanation Answer: A) 1126.19

Explanation:

M=P(1+i)^n

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

Give an investment of $13200,compound amount of $22680.06 invested for 8 years,what is the interest rate if interest rate is compounded anually?

A) 6%	B) 5%
C) 7%	D) 8%

Answer & Explanation Answer: C) 7%

Explanation:

M = p(1+i)^n

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

A man invested Rs. 4455 in Rs. 10 shares quoted at Rs. 8.25. If the rate of dividend be 12%, his annual income is:

A) 107.04	B) 648
C) 500	D) 648.60

Answer & Explanation Answer: B) 648

Explanation:

Number of shares = $\frac{4455}{8.25}$ = 540.

Face value = Rs. (540 x 10) = Rs. 5400.

Annual income = $R s . (\frac{12}{100} * 5400)$ = Rs. 648.

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Filed Under: Stocks and Shares

Q:

66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:

A) 84	B) 90
C) 168	D) 336

Answer & Explanation Answer: A) 84

Explanation:

Let the length of the wire be h.

Radius r =1/2 mm = 1/20 cm

${πr}^{2} h = 66$

=> h= (66 x 20 x 20) x (7/22) = 8400cm = 84m

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Filed Under: Volume and Surface Area

Q:

Find the time to double your investment at 6%

A) 10years	B) 11years
C) 12years	D) 13years

Answer & Explanation Answer: C) 12years

Explanation:

M=p(1+i)^n

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

A 6% stock yields 8%. The market value of the stock is:

A) 70	B) 76
C) 75	D) 80

Answer & Explanation Answer: C) 75

Explanation:

For an income of Rs. 8, investment = Rs. 100.

For an income of Rs. 6, investment = $R s . (\frac{100}{8} * 6)$ = Rs. 75.

Market value of Rs. 100 stock = Rs. 75.

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Filed Under: Stocks and Shares

Q:

What are the operating system components?

Answer

- Process management

- Main memory management

- File management

- I/O system management

- Secondary storage management

- Networking

- Protection system

- Command interpreter system

Workspace

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Subject: Operating Systems

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