CAT Questions

Q:

A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook ?

A) 15 B) 20
C) 10 D) 8
 
Answer & Explanation Answer: C) 10

Explanation:

Let the price of each note book be Rs.x.

Let the number of note books which can be brought for Rs.300 each at a price of Rs.x be y.

Hence xy = 300

=> y = 300/x

(x + 5)(y - 10) = 300 => xy + 5y - 10x - 50 = xy

=>5(300/x) - 10x - 50 = 0 => -150+x2+5x

multiplying both sides by -1/10x

=> x2+15x-10x-150=0

=> x(x + 15) - 10(x + 15) = 0

=> x = 10 or -15

As x>0, x = 10.

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Filed Under: Simplification
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9 9866
Q:

Which of the following is the largest unit of storage?

A) GB B) KB
C) MB D) TB
 
Answer & Explanation Answer: D) TB

Explanation:

The storage capacity is measured in bytes, kilo bytes, mega bytes, giga bytes and tera bytes. The largest unit of storage is Tera bytes.

Which_of_the_following_is_the_largest_unit_of_storage1552389085.png image

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Filed Under: Computer
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16 9852
Q:

In how many ways the letters of the word 'DESIGN' can be arranged so that no consonant appears at either of the two ends?

A) 240 B) 72
C) 48 D) 36
 
Answer & Explanation Answer: C) 48

Explanation:

DESIGN = 6 letters

 

No consonants appear at either of the two ends. 

2 x 4P4 =  2 x 4 x 3 x 2 x 1=  48

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Filed Under: Permutations and Combinations
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10 9852
Q:

Succus Entericus is secreted by

A) Auerbach's plexus B) Peyers patches.
C) Brunner's glands D) Crypts of Lieberkuhn
 
Answer & Explanation Answer: D) Crypts of Lieberkuhn

Explanation:

Succus Entericus is the alkaline secretion produced by glands in the wall of the duodenum, consisting of water, mucoproteins, and hydrogencarbonate ions.

 

Succus Entericus is secreted by Crypts of Lieberkuhn.

 

It helps to counteract the highly acidic and proteolytic chyme entering the small intestine from the stomach, and thus protects the duodenum from damage.

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Filed Under: Biology
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24 9851
Q:

India is the largest producer of

A) Cotton B) Milk
C) Mangoes D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

As per the latest updates, India is :

 

  • Largest producer of milk.
  • Largest producer of millets in the world.
  • Largest producer of jute.
  • Largest producer of ginger.
  • Largest producer of bananas.
  • Largest producer of castor oil seeds.
  • Largest producer of mangoes.
  • Largest producer of safflower oil seeds.
  • Largest producer of papayas.
  • Largest producer of cottonseed (As per International Cotton Advisory Committee (ICAC) report for the month of March 2017)

 

  • Second largest producer of tea, the first position being held by China.
  • Second largest producer of sugarcane, the first position being held by Brazil.
  • Second largest producer of wheat, the first position being held by China.
  • Second largest producer of onions, the first position being held by China.
  • Second largest producer of potatoes, the first position being held by China.
  • Second largest producer of garlic, the first position being held by China.
  • Second largest producer of rice, the first position being held by China.
  • Second largest producer of cement., next to China.
  • Second largest producer of silk, the first position being held by China.
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Filed Under: General Awareness
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6 9845
Q:

In a certain code language, 'is uc he bh kr' mean 'Lucky likes to dance freely', 'ha by lm kr op' mean 'Dance can be a hobby', 'he id ac kr bh' mean 'Lucky teaches dance to kids' and 'kr id bh tw uc' mean 'Kids dance freely with Lucky'.

Now answer the given question.

'Lucky likes to dance with kids' can be coded as ?

A) he kr op id uc tw B) bh is he kr tw id
C) ac tw op bh uc id D) None of the above
 
Answer & Explanation Answer: B) bh is he kr tw id

Explanation:

From given data, codes for

Lucky - bh

Likes - is

to - he

Dance - kr

with - tw

Kids - id

Hence, Lucky like to dance with kids can be coded as 'bh is he kr tw id'.

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Filed Under: Coding and Decoding
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60 9844
Q:

What is the ratio of 18 minutes to one hour ?

A) 1/5 B) 3/4
C) 1/7 D) 3/10
 
Answer & Explanation Answer: D) 3/10

Explanation:

One hour = 60 min

18/60 = 3/10

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Filed Under: Clocks
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39 9844
Q:

A sum is divided among K, L and M in such a way that for each rupee K gets, L gets 45 paisa and M gets 30 paisa. If the share of L is Rs. 27,  what is the total amount  ?

A) Rs. 159 B) Rs. 96
C) Rs. 147 D) Rs. 105
 
Answer & Explanation Answer: D) Rs. 105

Explanation:

K : L : M = 100 : 45 : 30
              = 20 : 9 : 6

Given L share is 27

=> 9  ------  27
      35 ------  ?

      => 105

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Filed Under: Ratios and Proportions
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11 9842