Exams


Q:

Find the Missing Numbers in the given Number Puzzle ?

20840690_1392703260836774_1644662038967277559_n1504170508.jpg image

A) 169 & 81 B) 67 & 121
C) 64 & 115 D) 70 & 110
 
Answer & Explanation Answer: A) 169 & 81

Explanation:

Observe that in each column, square of sum of digits in the first row = Respective second row elements.

 

In the same way, square of sum of digits in the second row = Respective third row elements.

 

=> 6+42=102=100

 

=> 4+92=132=169

 

=> 8+12=92=81.

Report Error

View Answer Report Error Discuss

Filed Under: Number Puzzles
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

93 17525
Q:

Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador.

Question :

 How many people live between the floors on which D and the one having a car Bedford ?

A) One B) Two
C) Three D) Four
 
Answer & Explanation Answer: B) Two

Explanation:

111-151497940723.png image

Above is the table obtained from the given information in the passage.

There are two people (B & G) live between the floors on which D and the one having a car Bedford.

Report Error

View Answer Report Error Discuss

23 17519
Q:

What are the four things needed to connect to the internet?

A) telephone line, modem, computer, and an ISP B) modem, computer, PDA, and ISP
C) telephone line, modem, computer, and PDA D) computer, ISP, modem, and communication software
 
Answer & Explanation Answer: D) computer, ISP, modem, and communication software

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Computer
Exam Prep: Bank Exams
Job Role: Bank PO

106 17515
Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Ramification
ii. Rampant
iii. Rapport
iv. Radical

 

A) iii, i, iv, ii B) iv, i, iii, ii
C) iv, i, ii, iii D) iii, iv, i, ii
 
Answer & Explanation Answer: C) iv, i, ii, iii

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

1 17515
Q:

The purpose of choke in tube light is

A) Induce high voltage B) Induce low resistance
C) Induce high resistance D) Induce low voltage
 
Answer & Explanation Answer: A) Induce high voltage

Explanation:

When the switch is ON, in a tube light choke is nothing but the coil/ballast ( inductor) which is used to induce the high voltage across it. as we know that inductor has property to induce high voltage for the brief period of time, this high voltage is required to ionize the gases in the starter.

Then gas inside the starter gets ionized due to this full voltage and heats the bimetallic strip that is caused to be bent to connect to the fixed contact. Current starts flowing through the starter. Although the ionization potential of the neon is the little bit more than that of the argon but still due to small electrode gap high voltage gradient is appeared in the neon bulb and hence glow discharge is started first in a starter.

As voltage gets reduced due to the current causes a voltage drop across the inductor, the strip cools and breaks away from the fixed contact. At that moment a large L di/dt voltage surge comes across the inductor at the time of breaking.

This high valued surge comes across the tube light electrodes and strikes penning mixture (mixture argon gas and mercury vapor).

Gas discharge process continues and current gets the path to flow through the tube light gas only due to low resistance as compared to the resistance of starter.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

31 17512
Q:

At what time, in minutes, between 3 o'clock and 4 o'clock, both the needles will coincide each other?

 A. 5111

B. 15415

C. 16411

D. 4415

A) Option A B) Option B
C) Option C D) Option D
 
Answer & Explanation Answer: C) Option C

Explanation:

At 3 o'clock, the minute hand is 15 min. spaces apart from the hour hand. 

 

 To be coincident, it must gain 15 min. spaces. 

 

 55 min. are gained in 60 min.

 

  Then 15 min spaces are gained in  = 6055×15 min. 

  

Therefore,  The hands are coincident at  16411 min. past 3 o'clock.

Report Error

View Answer Report Error Discuss

Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank Clerk

18 17506
Q:

A sum of money triples itself in 8 years simple interest. Find the rate of percent per annum?

A) 30% B) 25%
C) 22% D) 18%
 
Answer & Explanation Answer: B) 25%

Explanation:

The rate of percent R is given by,

exp.

Report Error

View Answer Report Error Discuss

Filed Under: Simple Interest
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

47 17488
Q:

What is the value of P in the following Equation ?

 192.5 × 19p = 197

A) 3.9 B) 4.1
C) 3.7 D) 4.5
 
Answer & Explanation Answer: D) 4.5

Explanation:

Given equation is  

  192.5 ×19p = 197   

Here it is in the form of am × an = am+n  

 Here m = 2.5 , n = p, m+n = 7

 => 2.5 + p = 7 

 => p = 7 - 2.5

 => p = 4.5

Report Error

View Answer Report Error Discuss

Filed Under: Mathematical Operations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

25 17486