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December 2012 - Solved Paper

1:  

The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of theirages was 5/3. The present age of A and B are

A.

30, 20

B.

35, 15

C.

38, 12

D.

40, 10

 
 

Option: A

Explanation :

Let the present ages of 2 persons be x and y
So x + y = 50  -------(i)
Ages 5 years ago x-5 and y-5
According to given condition (x-5) / (y-5) = 5/3
Cross multyplying 3x-15 = 5y -25
5y-3x=10 ------(ii)
Now multiplying (i) by 5 and subtracting   (ii) from it
(5y + 5x = 250) - (5y - 3x  = 10)
8x= 240
x= 30
So y= 20
Hence answer is (a)

 

 

 

 

 

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2:  

Let a means minus (–), b means multiplied by (x), C means divided by (÷) and D means plus (+). The value of 90 D 9 a 29 C 10 b 2 is 

A.

8

B.

10

C.

12

D.

14

 
 

Option: D

Explanation :

According to given rules we rearrange the given equation  which is 90+9-29/10*2 .We will solve it according to BODMAS rule.So firstly we will solve 29/10=2.9 then multiplication 2.9*2=5.8 then 90+9 =99  then 99-5.8= 93.2 . This is not in the options. However,if we simply solve the equation :- firstly 90+9=99 then 99-29=70 then 70/10=7 7*2=14. The correct answer is 'D'

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Gurmail Singh said: (3:10am on Sunday 24th February 2013)
as per math rule BODMAS it is not true.as per BODMAS its ans. is 93.5 which is not mention in option
sheena gupta said: (2:10pm on Sunday 24th February 2013)
ya, u r absolutely right, but mcqs are about choosing the most apt options from the provided options, so according to that criteria d is rgt option
sundeep adhana said: (12:23pm on Thursday 30th May 2013)
firstly they added 90 9 ...becomes 99 then subtracted 29 ...then it became 70 then divided by 10 and it became 7 and finally multiplied by 2 you get your answer......logically incorrect but in series and in calculator if you do so ..you will find the same answer........enjoy preparing...

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) and D means plus (+). The value of 90 D 9 a 29 C 10 b 2 is

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3:  

Which of the following prefix President Pranab Mukherjee desires to be discontinued while interacting with Indian dignitaries as well as in official notings ?
1. His Excellency
2. Mahamahim
3. Hon’ble
4. Shri/Smt.
Select the correct answer from the codes given below :

A.

1 & 3

B.

2 & 3

C.

1 & 2

D.

1,2 & 3

 
 

Option: C

Explanation :

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