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Q:

Ten years ago, Kumar was thrice as old as Sailesh was but 10 years hence, he will be only twice as old. Find Kumar’s present age ?

A) 50 years B) 70 years
C) 60 years D) 40 years
 
Answer & Explanation Answer: B) 70 years

Explanation:

Let Kumar’s present age be "x" years and Sailesh’s present age be "y" years.
Then, according to the first condition,


x - 10 = 3(y - 10) => x - 3y = - 20 ........(1)

Now, Kumar’s age after 10 years = (x + 10) years.

Sailesh’s age after 10 years = (y + 10) years.

(x + 10) = 2 (y + 10)  => x - 2y = 10 ......(2)

 

Solving (1) and (2),

we get x = 70 and y = 30

Kumar’s present age = 70 years    and  Sailesh’s present age = 30 years.

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Filed Under: Problems on Ages
Exam Prep: CAT
Job Role: Bank PO

12 17762
Q:

If u : v : w = 3 : 6 : 8, then what will be the ratio of (u/v) : (v/w) : (w/u)?

 

A) 8 : 6 : 3   B) 8 : 4 : 3  
C) 5 : 9 : 12   D) 6 : 9 : 32
 
Answer & Explanation Answer: D) 6 : 9 : 32

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

5 17761
Q:

Complete the Figure X from the given alternatives 1,2,3,4

 

 

 

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

0 17752
Q:

Tear one off and scratch my head, what once was red is black instead. What am I?

Answer

A Match stick. 


You tear a match out of a matchbook and scratch the head to light it, then the red tip turns black from the flame.

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Subject: Word Puzzles Exam Prep: TOEFL , GRE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

32 17732
Q:

In the binary Language each letter of  the alphabet, each number and each special character is made up of a unique combination of  _________

A) eight bytes B) eight kilobytes
C) eight characters D) eight bits
 
Answer & Explanation Answer: D) eight bits

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

57 17711
Q:

Read the statements and answer the question based on it.

 

Statements :

 

1. Some mammals are extinct and some are critically endangered.
2. All dinosaurs are extinct.
3. Some reptiles are critically endangered and some are already extinct.

 

Which option logically follows the given statements ?

 

A) All dinosaurs are mammals B) There are no reptiles that are out of the danger of extinction
C) No dinosaurs are critically endangered D) Some reptiles are dinosaurs who are extinct
 
Answer & Explanation Answer: C) No dinosaurs are critically endangered

Explanation:
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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

0 17705
Q:

Refer the below data table and answer the following question.

Five points are to be deducted from the students average of marks scored because of poor attendance. What will be the students net average marks scored?

A) 39 B) 34
C) 29 D) 44
 
Answer & Explanation Answer: A) 39

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 17689
Q:

A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. What is the time taken to cover the distance at his original speed ?

A) 1hr B) 1 hr 20 min
C) 1 hr 10 min D) 50 min
 
Answer & Explanation Answer: B) 1 hr 20 min

Explanation:

Let the distance and original speed be 'd' km and 'k' kmph respectively.

d/0.8k - d/k = 20/60 => 5d/4k - d/k = 1/3

=> (5d - 4d)/4k = 1/3 => d = 4/3 k

Time taken to cover the distance at original speed

= d/k = 4/3 hours = 1 hour 20 minutes.

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Filed Under: Time and Distance
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

21 17689