5555+ Aptitude and Reasoning Questions, Answers With Explanation

Q:

The ratio of K’s and M’s ages is 4: 5. If the difference between the present age of M and the age of K, 5 years hence is 3 years, then what is the difference and total of present ages of K and M?

A) 8, 72 yrs	B) 16, 65 yrs
C) 12, 84 yrs	D) 10, 60 yrs

Answer & Explanation Answer: A) 8, 72 yrs

Explanation:

Let the present ages be K,M

Given K/M = 4/5

5K - 4M = 0 ......(1)

Also given that,

M - (K + 5) = 3

M - K = 8 .........(2)

Then, by solving (1) & (2)

M = 40 yrs and K = 32 yrs

Hence, Total of ages = 40 + 32 = 72 yrs

Difference of ages = 40 - 32 = 8 yrs.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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3 6964

Q:

The position of the first and sixth letters in the word CONTEXTUAL are interchanged. Similarly, the positions of the second and the seventh letters are interchanged , and so on. Which of the following will be the fourth letter from the right end after the rearrangement?

A) O	B) N
C) T	D) E

Answer & Explanation Answer: A) O

Explanation:

Given word : CONTEXTUAL

After making changes as per given in the question , the above word becomes as follows:

XTUALCONTE . Hence, 4th letter from the right end is O.

quicker method:

Total no of letters in the given word = 10.

4th letter from the right means (10 - 4 + 1 =) 7th letter from the left of the word obtained after rearrangement. Again, read the question , we come to know that, the positions of the second and seventh letters are interchanged. Hence the required letter is the second letter of the given word which is O.

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Filed Under: Alphabet Test

3 6962

Q:

Assertion(A) : Indus valley people knew the art of navigation.
Reason(R) : Indus valley seals indicate prevalence of overseas trade.

A) R is true but A is fale	B) A is true but R is false
C) Both A and R are false	D) R correctly explains A

Answer & Explanation Answer: D) R correctly explains A

Explanation:

The seals found at Indus valley sites gave evidance of overseas trade, which was possible only with the knowledge of art of navigation.
Thus, both A and R are true & R correctly explains A.

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Filed Under: Assertion and Reason
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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10 6961

Q:

If the letters in the word DOLPHIN are rearranged as they appear in English alphabetical order, which of the following letters, will be the fifth from left?

A) O	B) D
C) L	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Arrangement of letters of the given word DOLPHIN according to the English alphabetical order is as follows:

D H I L N O P

Hence, N is the fifth letter from the left

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Filed Under: Alphabet Test

6 6957

Q:

How many meaningful English words can be formed with the letters A, L, W using each letter only once in each word ?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

Explanation:

Using the letters A, L, W

only one meaningful English word can be formed i.e, LAW

No other words can be formed.

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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , CAT
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20 6955

Q:

When Dr. Ram arrives in his dispensary, he finds 12 patients waiting to see him. If he can see only one patients at a time,find the number of ways, he can schedule his patients if 3 leave in disgust before Dr. Ram gets around to seeing them.

A) 479001600	B) 79833600
C) 34879012	D) 67800983

Answer & Explanation Answer: B) 79833600

Explanation:

There are 12 - 3 = 9 patients.They can be seen in $12 P_{9}$ = 79833600 ways

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Filed Under: Permutations and Combinations

3 6954

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

4 6953

Q:

The Value of $[\log (\tan (1^{0})) + \log (\tan (2^{0})) + \dots \dots + \log (\tan (89^{0}))]$ is

A) -1	B) 0
C) 1/2	D) 1

Answer & Explanation Answer: B) 0

Explanation:

$= [\log \tan (1^{0}) + \log \tan (89^{0})] + [\log \tan (2^{0}) + \log \tan (88^{0})] + \dots \dots + [\log \tan (45^{0})]$

$= \log [\tan (1^{0}) \times \tan (89^{0})] + \log [\tan (2^{0}) \times \tan (88^{0})] + \dots \dots + \log (1)$

$[∵ \tan (90 - θ) = c o t θ a n d \tan (45^{0}) = 1]$

= log 1 + log 1 +.....+log 1

= 0.

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Filed Under: Logarithms
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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27 6950

Aptitude and Reasoning Questions

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Non Verbal Reasoning

Quantitative Aptitude - Arithmetic Ability

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Verbal Reasoning - Logical Deduction

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