Aptitude and Reasoning Questions

Q:

It is given that log10 2= 0.301 and log10 3 = 0.477. How many digits are there in (108)10?

A) 19 B) 20
C) 21 D) 22
 
Answer & Explanation Answer: C) 21

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Logarithms
Exam Prep: Bank Exams

38 5299
Q:

The G.C.D of 1.08, 0.36 and 0.9 is

A) 0.9 B) 0.36
C) 0.18 D) 1.08
 
Answer & Explanation Answer: C) 0.18

Explanation:

G.C.D is nothing but H.C.F

 

Given numbers are 1.08 , 0.36 and 0.90

 

we can take as 108, 36 and 90 

 

Then required H.C.F is 18.

 

Therefore, H.C.F of given numbers is 0.18.

Report Error

View Answer Report Error Discuss

Filed Under: HCF and LCM
Exam Prep: TOEFL , GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

19 5298
Q:

You are in the parking area of a shopping complex. And, suddenly the electricity fails and there is total darkness. You will 

A) try and take help from someone around B) crawl towards your vehicle
C) shout for help D) wait till the lights come
 
Answer & Explanation Answer: B) crawl towards your vehicle

Explanation:
Report Error

View Answer Report Error Discuss

91 5298
Q:

Pointing to a photograph, a woman says, "This man's son's sister is my mother-in-law." How is the woman's husband related to the man in the photograph ?

A) son B) nephew
C) grandson D) son-in-law
 
Answer & Explanation Answer: C) grandson

Explanation:

Man's son's sister---Man's daughter.
So, the man's daughter is the mother of the woman's husband. Thus, the woman's husband is the grandson of the man in the photograph.

Report Error

View Answer Report Error Discuss

Filed Under: Blood Relations
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

6 5296
Q:

Which of the following groups of alphabets should replace the blank spaces so that the group of alphabets, given in bold, follow a logical pattern from the preceding and the following group of alphabets?

b w _ y z a,  d s t u v _ ,  _ o p q r e 

A) x, e, d B) x, c, f
C) x, e, n D) x, c, d
 
Answer & Explanation Answer: B) x, c, f

Explanation:

b w x y z a d s t u v cf o p q r e

Report Error

View Answer Report Error Discuss

Filed Under: Number Series

4 5288
Q:

If the simple interest on a sum of money at 5% per annum for 3 years is Rs. 1200, find the compound interest on the same sum for the same period at the same rate.

A) Rs.1251 B) Rs.1261
C) Rs.1271 D) Rs,1281
 
Answer & Explanation Answer: B) Rs.1261

Explanation:

Clearly, Rate = 5% p.a .,

Time = 3 years

S.I =Rs.1200.

So,Principal

=Rs.(100 x 1200/3x5)

=Rs.8000.

 

Amount

=Rs.[8000 x (1+5/100)³]

=Rs(8000x21/20x21/20x21/20)

= Rs.9261

 

C.I

=Rs.(9261-8000)

=Rs.1261.

Report Error

View Answer Report Error Discuss

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

1 5287
Q:

A,B,C can complete a work in 15,20 and 30 respectively.They all work together for two days then A leave the work,B and C work some days and B leaves 2 days before completion of that work.how many days required to complete the whole work?

Answer

Given A,B,C can complete a work in 15,20 and 30 respectively.


The total work is given by the LCM of 15, 20, 30 i.e, 60.


A's 1 day work = 60/15 = 4 units


B's 1 day work = 60/20 = 3 units


C's 1 day work = 60/30 = 2 units


(A + B + C) worked for 2 days = (4 + 3 + 2) 2 = 18 units


 Let B + C worked for x days = (3 + 2) x = 5x units


C worked for 2 days = 2 x 2 = 4 units


Then, 18 + 5x + 4 = 60


22 + 5x = 60


5x = 38


x = 7.6


 


Therefore, total number of days taken to complete the work = 2 + 7.6 + 2 = 11.6 = 11 3/5 days.

Report Error

View answer Workspace Report Error Discuss

Subject: Time and Work Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

10 5286
Q:

The average temperature of Monday to Wednesday was 37 C and of Tuesday to Thursday was 34 C. If the temperature on Thursday was 4/5 th of that of Monday, the temperature on Thursday was ?

A) 35 c B) 36 c
C) 34 c D) 32 c
 
Answer & Explanation Answer: B) 36 c

Explanation:

Monday + Tuesday + Wednesday = 37 x 3 -----------(1)
Tuesday + Wednesday + Thursday = 34 x 3---------(2)
Thursday = 4/5 of Monday ------------------(3)
subtract eqn (1) from (2) we get,
Thursday - Monday = -9
=> Monday - Thursday = 9.......(4)
From (3) & (4), we get

So,Thursday = 36 C

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

3 5285