Aptitude and Reasoning Questions

Q:

How much pepsi at Rs.6 a litre is added to 15 litre of 'dew' at Rs. 10 a litre so that the price of the mixture be Rs.9 a litre?

A) 5 B) 8
C) 10 D) None of these
 
Answer & Explanation Answer: A) 5

Explanation:

Let x litre pepsi is required.

 

 

(10-9)=1           :                3=(9-6)

 

Therefore  in 1:3 one part = 5 

 

=>  x= 5 litres

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Filed Under: Alligation or Mixture

8 12966
Q:

Three numbers are in the ratio of 3:4:5 and their L.C.M is 3600.Their HCF is:

A) 40 B) 60
C) 100 D) 120
 
Answer & Explanation Answer: B) 60

Explanation:

Let the numbers be 3x, 4x, 5x.

 

Then, their L.C.M = 60x.

 

So, 60x=3600 or x=60.

 

Therefore,  The numbers are (3 x 60), (4 x 60), (5 x 60).

 

Hence,required H.C.F=60

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Filed Under: HCF and LCM
Exam Prep: CAT
Job Role: Bank PO

15 12951
Q:

Identify the diagram that best represents the relationship among the given classes.

 

Stationery, Pencil, Rubber

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

Explanation:
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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

1 12948
Q:

The age of Sohail, Afzal and Bilal are 17,16 and 12 respectively. If the age of Aslam also included the average of the ages is increased by 5. What is the age of Aslam?

A) 32 B) 33
C) 34 D) 35
 
Answer & Explanation Answer: D) 35

Explanation:

Given S = 17 yrs

A = 16 yrs

B = 12 yrs

Average = 17 + 16 + 12/3 = 15 yrs

Given if Aslam added to them, their average increases by 5

=> Average of 4 members = 20

Let the age of Aslam be 'x'

Then, 

17 + 16 + 12 + x /4 = 20

=> x = 80 - 45

=> x = 35. 

 

Hence, the age of Aslam is 35 yrs.

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

15 12934
Q:

In the following question, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. AZ, GT, MN, ?, YB

A) TS B) SH
C) KF D) RX
 
Answer & Explanation Answer: B) SH

Explanation:

First letter moves 6 steps forward. Second letter moves 6 steps backward.

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Filed Under: Number Series

67 12927
Q:

The positions of the first and sixth digits in the number 5109238674 are interchanged. Similarly the positions of the second and the seventh digits are interchanged and so on . which of the following will be the third digit from the right end after the after the rearrangement?

A) 9 B) 0
C) 6 D) 3
 
Answer & Explanation Answer: B) 0

Explanation:

There are 10 digits. Now, third digit from the right means (10-3+1 = ) 8th digit from the left.  But, from the question , third  and eighth digits are interchanged. Hence, the required digit is the third digit of the given number, ie 0.

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43 12925
Q:

                        Items of Expenditure

         
Year Salary Food Medicine Tax
2001 Rs.1500 Rs.200 Rs.500 Rs.100
2002 Rs.2600 Rs.300 Rs.600 Rs.200
2003 Rs.3200 Rs.150 Rs.700 Rs.150
2004 Rs.4100 Rs.250 Rs.650 Rs.125
2005 Rs.5000 Rs.200 Rs.800 Rs.150
2006 Rs.5200 Rs.100 Rs.750 Rs.175

 

The average salary per year during period 2001-2006 is:

 

A) 3400 B) 3800
C) 3500 D) 3600
 
Answer & Explanation Answer: D) 3600

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

0 12908
Q:

The Shopkeeper increased the price of a product by 25% so that customer finds it difficult to purchase the required amount. But somehow the customer managed to purchase only 70% of the required amount. What is the net difference  in the expenditure on that product?

A) 10% more B) 5% more
C) 12.5% more D) 17.5% more
 
Answer & Explanation Answer: C) 12.5% more

Explanation:

    Quantity  X  Rate =  Price

 

         1  x  1  =  1

 

       0.7 x 1.25 = 0.875

 

      Decrease in price = (1-0.875) x 100 = 12.5%

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Filed Under: Percentage

19 12904