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Q:

A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

A) 2 : 1	B) 3 : 2
C) 25 : 18	D) 27 : 20

Answer & Explanation Answer: C) 25 : 18

Explanation:

Volume of the large cube = $(3^{3} + 4^{3} + 5^{3})$ = 216 cu.cm.

Let the edge of the large cube be a.

So, $a^{3}$ = 216

=>a = 6 cm.

Required ratio = $\frac{6 (3^{2} + 4^{2} + 5^{2})}{6 (6^{2})} = \frac{25}{18}$

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Filed Under: Volume and Surface Area

Q:

Assume that money can be invested at 8% compounded quarterly,which is larger,$2500 now or $3800 in 5 years?

A) 1557.29	B) 2557.29
C) 2567	D) 2457

Answer & Explanation Answer: B) 2557.29

Explanation:

First find the present value of $3800,then compare present values:

M = p(1+i/4)^4n

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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:

Find the compound amount if $1200 is deposited at 8% interest for 11 years if interest is compounded continuously

A) 1456	B) 1456
C) 1693.08	D) 1890

Answer & Explanation Answer: C) 1693.08

Explanation:

M=Pe^yr

2893.08

I=M-P

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

What is a binary semaphore?

Answer

A binary semaphore is one, which takes only 0 and 1 as values. They are used to implement mutual exclusion and synchronize concurrent processes.

Workspace

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Subject: Operating Systems

Q:

Find the compound amount if $2900 is deposited at 5% interest for 10 years if interest is compounded daily

A) 4781.13	B) 5781
C) 3456	D) 4567

Answer & Explanation Answer: A) 4781.13

Explanation:

M=P(1+i/365)^365n

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

$32000 is invested at 10% for 2 years.Find the interest compounded Yearly

A) 4720	B) 5720
C) 6720	D) 7720

Answer & Explanation Answer: C) 6720

Explanation:

M=P(1+i)^n

I=M-P

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

Example:$800 is invested at 7% for 6 years.Find the interest compounded anually?

A) 400.58	B) 300.58
C) 200.58	D) 100.58

Answer & Explanation Answer: A) 400.58

Explanation:

M=P(1+i)^n

I=M-P

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

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