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Q:

A subset of the database which contain virtual data that is derived from the database files but is not explicitly stored is called

A) Touple	B) View
C) Relation	D) Key

Answer & Explanation Answer: B) View

Explanation:

A view may be a subset of the database or it may contain virtual data that is derived from the database files but is not explicitly stored .

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Filed Under: Database
Job Role: Database Administration

Q:

A chartered bank offers a five-year Escalator Guaranteed Investment Certificate.In successive years it pays annual interest rates of 4%, 4.5%, 5%, 5.5%, and 6%, respectively, compounded at the end of each year. The bank also offers regular five-year GICs paying a fixed rate of 5% compounded annually. Calculate and compare the maturity values of $1000 invested in each type of GIC. (Note that 5% is the average of the five successive one-year rates paid on the Escalator GIC.)

A) 1276.28	B) 1234
C) 1278	D) 1256

Answer & Explanation Answer: A) 1276.28

Explanation:

FV = $1000(1.04)(1.045)(1.05)(1.055)(1.06) = $1276.14

the maturity value of the regular GIC is

FV = $ 1000 x ${(1.05)}^{5}$ = $1276.28

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

Q:

12 points lie on a circle. How many cyclic quadrilaterals can be drawn by using these points?

A) 500	B) 490
C) 495	D) 540

Answer & Explanation Answer: C) 495

Explanation:

For any set of 4 points we get a cyclic quadrilateral. Number of ways of choosing 4 points out of 12 points is $12 C_{4}$ = 495.

Therefore, we can draw 495 quadrilaterals

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Filed Under: Permutations and Combinations

Q:

What periodic payment will an investor receive from a $9000, four-year, monthly payment GIC earning a nominal rate of 5.25% compounded monthly?

A) 29.38	B) 39.38
C) 49.38	D) 59.38

Answer & Explanation Answer: B) 39.38

Explanation:

i=j/m

The monthly payment will be=PV*I

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

Q:

How many arrangements of the letters of the word ‘BENGALI’ can be made if the vowels are to occupy only odd places.

A) 720	B) 576
C) 567	D) 625

Answer & Explanation Answer: B) 576

Explanation:

There are 7 letters in the word Bengali of these 3 are vowels and 4 consonants.

There are 4 odd places and 3 even places. 3 vowels can occupy 4 odd places in $4 P_{3}$ ways and 4 constants can be arranged in $4 P_{4}$ ways.

Number of words = $4 P_{3}$ x $4 P_{4}$ = 24 x 24 = 576

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Filed Under: Permutations and Combinations

Q:

Find the number of subsets of the set {1,2,3,4,5,6,7,8,9,10,11} having 4 elements.

A) 340	B) 370
C) 320	D) 330

Answer & Explanation Answer: D) 330

Explanation:

Here the order of choosing the elements doesn’t matter and this is a problem in combinations.

We have to find the number of ways of choosing 4 elements of this set which has 11 elements.

This can be done in 11 $C_{4}$ ways = 330 ways

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Filed Under: Permutations and Combinations

Q:

How many arrangements of the letters of the word ‘BENGALI’ can be made if the vowels are never together.

A) 120	B) 640
C) 720	D) 540

Answer & Explanation Answer: C) 720

Explanation:

There are 7 letters in the word ‘Bengali of these 3 are vowels and 4 consonants.

Considering vowels a, e, i as one letter, we can arrange 4+1 letters in 5! ways in each of which vowels are together. These 3 vowels can be arranged among themselves in 3! ways.

Total number of words = 5! x 3!= 120 x 6 = 720

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Filed Under: Permutations and Combinations

Q:

Two payments of $10,000 each must be made one year and four years from now. If money can earn 9% compounded monthly, what single payment two years from now would be equivalent to the two scheduled payments?

A) 17296	B) 13296
C) 19296	D) 15296

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