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Q:

From a tank of petrol, which contains 200 litres of petrol, the seller replaces each time with kerosene when he sells 40 litres of petrol(or its mixture). Everytime he sells out only 40 litres of petrol(pure or impure). After replacing the petrol with kerosen 4th time, the total amount of kerosene in the mixture is 

A) 81.92L B) 96L
C) 118.08L D) None of these
 
Answer & Explanation Answer: C) 118.08L

Explanation:

The amount of petrol left after 4 operations  

= 200 × 1-402004  

= 200 × 454  

= 200 × 256625  

= 81.92 litres

 

Hence the amount of kerosene = 200 - 81.92 = 118. 08 litres

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Filed Under: Alligation or Mixture
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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9 9240
Q:

A bus covers its journey at the speed of 80km/hr in 10hours. If the same distance is to be covered in 4 hours, by how much the speed of bus will have to increase ?

A) 85 km/hr B) 95 km/hr
C) 105 km/hr D) 120 km/hr
 
Answer & Explanation Answer: D) 120 km/hr

Explanation:

Initial speed = 80km/hr
Total distance = 80 x 10 = 800km
New speed = 800/4 =200km/hr
Increase in speed = 200 - 80 = 120km/hr

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Filed Under: Time and Distance
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12 9238
Q:

All variables in PHP start with which symbol?

A) % B) !
C) $ D) &
 
Answer & Explanation Answer: C) $

Explanation:
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Filed Under: Programming
Exam Prep: Bank Exams

38 9238
Q:

A place where government records are kept

A) Coffer B) Pantry
C) Archives D) Scullery
 
Answer & Explanation Answer: C) Archives

Explanation:

A place where government records are kept are called Archives.

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Filed Under: English
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9 9233
Q:

What has three feet but no toes?

Answer

A Yardstick has three feet used for measuring but no toes.

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Subject: Word Puzzles Exam Prep: CAT , Bank Exams , AIEEE
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47 9233
Q:

One-third of the boys and one-half of the girls of a college participated in a sport. If the number of participating students is 300, out of which 100 are boys. What is the total number of students in the college?

A) 500 B) 300
C) 600 D) 700
 
Answer & Explanation Answer: D) 700

Explanation:

Let number of boys in the school = x

Let number of girls in the school = y

Number of students participated in the sports = 300

Out of which boys = 100

but given number of boys participated in sports = x/3

=> x/3 = 100

=> x = 300

Remaining girls = 300 - 100 = 200

=> y/2 = 200

=> y = 400

Therefore, total number of students in the school = x + y = 300 + 400 = 700

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Filed Under: Percentage
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15 9227
Q:

Which of these illustrates the Secondary Structure of a Protein?

chemistry1519110232.jpg image

A) A B) B
C) C D) D
 
Answer & Explanation Answer: B) B

Explanation:

The Secondary Structure of a Protein is option B)

 

The Secondary Structure of a Protein results from Hydrogen Bonds.

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Filed Under: Chemistry
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2 9226
Q:

How many holes are in this shirt?

how_many_holes_are_there_in_this_shirt1542186605.jpg image

A) 4 B) 7
C) 8 D) 6
 
Answer & Explanation Answer: C) 8

Explanation:

There are 8 holes in this given shirt.

how_many_holes_are_there_in_this_t-_shirt11542267000.jpg image

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Filed Under: Logic Puzzles
Exam Prep: CAT , Bank Exams , AIEEE
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34 9225