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Q:

If P(A)=4/9;then the odd against the event A is:

A) 4:9	B) 4:5
C) 5:4	D) 4:14

Answer & Explanation Answer: C) 5:4

Explanation:

Here,P(A)=4/9=p/(p+q)

P(odd against event A)=q/p=5/4

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Filed Under: Probability

Q:

What is the difference between routable and non- routable protocols?

Answer

Routable protocols can work with a router and can be used to build large networks. Non-Routable protocols are designed to work on small, local networks and cannot be used with a router

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Subject: Networking
Job Role: Database Administration

Q:

How are the wait/signal operations for monitor different from those for semaphores?

Answer

If a process in a monitor signal and no task is waiting on the condition variable, the signal is lost. So this allows easier program design. Whereas in semaphores, every operation affects the value of the semaphore, so the wait and signal operations should be perfectly balanced in the program.

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Subject: Operating Systems

Q:

If p:q are the odds in favour of an event,then the probability of that event is:

A) p/q	B) p/(p+q)
C) q/(p+q)	D) none

Answer & Explanation Answer: B) p/(p+q)

Explanation:

Total number of cases=p+q

Favourable cases=p

Probability of that event is=p/(p+q)

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Filed Under: Probability

Q:

A sum of money lent at compound interest for 2 years at 20% per annum would fetch Rs.482 more, if the interest was payable half yearly than if it was payable annually . The sum is

A) 10000	B) 20000
C) 40000	D) 50000

Answer & Explanation Answer: B) 20000

Explanation:

Let sum=Rs.x

C.I. when compounded half yearly = $[x {(1 + \frac{10}{100})}^{4} - x] = \frac{4641}{10000}$

C.I. when compounded annually = $[x {(\frac{20}{100})}^{2} - x] = \frac{11}{25}$

$\frac{4641}{10000} x - \frac{11}{25} x = 482$

=> x=20000

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

Q:

An element X forms an oxide $XO_{_{3}}$ , what ihe valency of X

A) 1	B) 2
C) 3	D) 6

Answer & Explanation Answer: D) 6

Explanation:

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Filed Under: Chemistry

Q:

If you deposit $8000 into an account paying 7% annual interest compounded quarterly, how long until there is $12400 in the account?

A) 2.3	B) 3.3
C) 4.3	D) 6.3

Answer & Explanation Answer: D) 6.3

Explanation:

FV=P(1+r/n)^nt

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

Q:

If you deposit $5000 into an account paying 6% annual interest compounded monthly, how long until there is $8000 in the account?

A) 6.9	B) 7.9
C) 8.9	D) 9.9

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