CAT Questions

Q:

Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ?

A) 6 : 8 : 9 B) 8 : 6 : 9
C) 9 : 8 : 6 D) 6 : 5 : 4
 
Answer & Explanation Answer: C) 9 : 8 : 6

Explanation:

Given the salaries are in the ratio of 4 : 5 : 6

 

Now the salaries are increased by 50%, 60% and 50% respectively

 

The New ratio of salaries will be

 

4 x (150/100) : 5 x (160/100) : 6 x (150/100)

 

= 6 : 8 : 9

 

The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6

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Filed Under: Ratios and Proportions
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12 5873
Q:

Which of the following memories needs refresh ?

A) DRAM B) ROM
C) SRAM D) All of the above
 
Answer & Explanation Answer: A) DRAM

Explanation:
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Filed Under: Computer
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15 5871
Q:

What word begins and ends with an E but only has one letter?

A) Eye B) Envelope
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Envelope

Explanation:

Envelope is a letter holder for one letter and in the question it mean that it holds one letter. Eye is also a word which starts and end with E but has one letter in the middle.

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3 5869
Q:

Bijapur is known for its what?

A) Statue of Gomateshwara B) Heavy rainfall
C) Gol Gumbaz D) Severe Drought area
 
Answer & Explanation Answer: C) Gol Gumbaz

Explanation:

Bijapur is known for its Gol Gumbaz. Bijapur city is well known for its historical monuments of architectural importance built during the rule of the Adil Shahi dynasty.

 

What is Gol Gumbaz ::

 

1. It is the tomb of Mohammed Adil Shah. This is the most famous monument in Bijapur. 

2. It is the largest dome ever built in India.

3. A particular attraction in this monument is the central chamber, where every sound is echoed seven times.

4. Another attraction at the Gol Gumbaz is the Whispering Gallery, where even minute sounds can be heard clearly 37 metres away.

 

    • Statue of Gomateshwara - Shravanabelagola in Karnataka.

 

    • Heavy Rainfall - Cherrapunji in Meghalaya.
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19 5863
Q:

Which type of rock usually underlies a karst landscape?

A) Limestone B) Quartz
C) Granite D) All the above
 
Answer & Explanation Answer: A) Limestone

Explanation:

Karst is a type of landscape that is characterized by caverns, caves, sinkholes, and underground streams. These features were all caused by erosion of the underlying rock.

 

Limestone type of rock usually underlies a karst landscape.

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Filed Under: Indian Geography
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8 5861
Q:

A sum of Rs. 4,300 is distributed among M, N and O, such that M receives 25% more than N and N receives 25% less than O. What is O’s share in the amount?

A) 1564 B) 1600
C) 1632 D) 1714
 
Answer & Explanation Answer: B) 1600

Explanation:

Let O's share = Rs. P

=> N's share = 75100 x P = 3P4

M's share = 54 x 3P4 = 15P16

15P16 + 3P4 + P = 4300=> P = 4300 x 1643 = 1600 

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Filed Under: Partnership
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14 5855
Q:

A certain sum of money is invested for one year at a certain rate of simple interest. If the rate of interest is 3% higher, then the invest earned will be 25% more than the interest earned earlier. What is the earlier rate of interest ?

A) 4% p.a. B) 6% p.a.
C) 8% p.a. D) 12% p.a.
 
Answer & Explanation Answer: D) 12% p.a.

Explanation:

If the interest earned is 25% more than the earlier interest then the rate of interest also should be 25% higher than the earlier rate.
Let the earlier rate of interest be x%.
Now it will be (x + 3)%
% increase = (x + 3) - x/x * 100 = 25
=> x = 12%

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Filed Under: Profit and Loss
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5 5855
Q:

To what kingdom do common bacteria belong

A) Archaea B) Protista
C) Eubacteria D) All the above
 
Answer & Explanation Answer: C) Eubacteria

Explanation:

There are two kingdoms of bacteria. They are

1. Eubacteria  and 

2. Archaea

 

The members of these two kingdoms appear similar in shape and appearance, even under the extreme magnification of the electron microscope . However, they are very different from each other in a number of molecular and biochemical aspects. It is these differences that have resulted in the microorganisms being grouped into separate kingdoms.

 

For example, eubacteria contain the rigid, stress-bearing network known as the peptidoglycan . The only exceptions are the bacteria from the genera Mycoplasma and Chlamydia. Archaebacteria do not contain peptidoglycan. Instead, they contain a different structure that is called pseudomurein.

 

The common bacteria belongs to Eubacteria kingdom.

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Filed Under: Biology
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6 5854