Aptitude and Reasoning Questions

Q:

In the following question, select the missing number from the given series.

 

11, 13, 17, 19, 23, ?

 

A) 29   B) 27  
C) 31   D) 37
 
Answer & Explanation Answer: A) 29  

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Number Series
Exam Prep: Bank Exams

1 17514
Q:

In an NGO the daily average wages of 20 illiterate employees is decreased from Rs.25 to Rs.10, thus the average salary of  all the literate and illiterate  employees is decreased Rs.10 per day. The No. of educated employees working in the NGO is :

A) 15 B) 20
C) 10 D) Data Insufficient
 
Answer & Explanation Answer: C) 10

Explanation:

Total employees = 25-10×2010=30

 Hence number of educated employees  = 30-20 = 10

Report Error

View Answer Report Error Discuss

Filed Under: Average

32 17513
Q:

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

i. Regular
ii. Reinforcement
iii. Rainbow
iv. Remedy

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

Explanation:
Report Error

View Answer Report Error Discuss

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

0 17503
Q:

What will be next number in the series?

 

0, 1, 4, 27, 16, 125, 36, ?

 

A) 343 B) 144
C) 72 D) 25
 
Answer & Explanation Answer: D) 25

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Number Series
Exam Prep: Bank Exams

8 17493
Q:

In the following question, one term in the number series is wrong. Find out the wrong term?

5, 10, 40, 80, 320, 550, 2560

A) 80 B) 320
C) 550 D) 2560
 
Answer & Explanation Answer: C) 550

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Number Series
Exam Prep: Bank Exams

0 17489
Q:

Use the following passage for the questions based on it.

 

There are 6 flats on a floor in two rows. Out of these, three are north facing and the other three are south facing flats. The flats are to be allotted amongst Arun, Biswajyot, Chitra, Derek, Evan, and Fatima. Biswajyot gets a north facing flat and is not next to Derek. Derek and Fatima get diagonally opposite flats. Chitra is next to Fatima, and gets a south facing flat. Evan gets a north facing flat.

 

Which of the following pairs is exactly opposite to each other?

A) Derek and Evan B) Fatima and Chitra
C) Evan and Chitra D) Evan and Arun
 
Answer & Explanation Answer: C) Evan and Chitra

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Arithmetical Reasoning

0 17482
Q:

Two pipes A and B can fill a tank in 24 hours and 1717 hours respectively. Harihar opened the pipes A and B to fill an empty tank and some times later he closed the taps A and B , when the tank was supposed to be full. After that it was found that the tank was emptied in 2.5 hours because an outlet pipe "C" connected to the tank was open from the beginning. If Harihar closed the pipe C instead of closing pipes A and B the remaining tank would have been filled in :

A) 2 hours B) 8 hours
C) 6 hours D) 4 hours
 
Answer & Explanation Answer: B) 8 hours

Explanation:

Efficiency of Inlet pipe A = 4.16%       10024 

 

Efficiency of Inlet pipe B = 5.83%      1001717  

 

Therefore, Efficiency of A and B together = 100 %   

 

Now, if the efficiency of outlet pipe be x% then in 10 hours the capacity of tank which will be filled = 10 *  (10 - x)

 

Now, since this amount of water is being emptied by 'C' at x% per hour, then

 

 10x10-xx=2.5 hrs 

 => x = 8 

 

Therefore, in 10 hours 20% tank is filled only. Hence, the remaining 80% of the  capacity will be filled by pipes A and B  in 80/10 = 8 hours 

Report Error

View Answer Report Error Discuss

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

38 17468
Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

Assertion(A)  : Graphite is slippery and used as a lubricant. 

Reason (R)    : Graphite has free electrons. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: B) Both A and R are true but R is NOT the correct explanation of A.

Explanation:

Graphite possesses a layer structure with two successive layers held by weak forces and able to slide over one another. So, graphite is slippery and this property finds its use as a lubricant. In graphite, each carbon atom is linked to three other carbon atoms while one electron in the carbon atom is delocalised. So, graphite has free electrons 

 

 

Report Error

View Answer Report Error Discuss

Filed Under: Assertion and Reason

20 17459