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Q:

In a computer game, there are builders and destroyers. Together there are 20 of them. Some of them try to build a wall around a castle while the rest try to demolish it. Each of the builders can build the wall alone in 15 hours while any of the destroyers can demolish it in 10 hours. If all 20 builders and destroyers are made active when there is no wall and the wall gets built in 3 hours, how many of them are destroyers?

A) 5 B) 7
C) 6 D) 8
 
Answer & Explanation Answer: C) 6

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Filed Under: Time and Work
Exam Prep: Bank Exams

Q:

The difference between Charles' and Shriya's ages is 6 years. When they married each other 30 years ago, 4 times Charle's age was the same as 5 times the age of Shriya. What is the current sum of their ages?

A) 115 yrs B) 112 yrs
C) 114 yrs D) 110 yrs
 
Answer & Explanation Answer: C) 114 yrs

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

If WASP STINGS HARD is coded as @%Z, HARD TO DEAL is coded as Z65 and HEAL LONG TIME is coded as 896, what is the code for HARD?

A) @ B) 9
C) Z D) 5
 
Answer & Explanation Answer: C) Z

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

Q:

In the circle above, chord AB is extended to meet the tangent DE at D. If AB = 5 cm and DE = 6 cm, find the length of BD.

 

A) 4 cm B) 5 cm
C) 6 cm D) √30 cm
 
Answer & Explanation Answer: A) 4 cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

From the top of a platform 7 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 50√3 m away from the tower, how tall was the tower?

A) 57 m B) 50 m
C) (25√3 + 7) m D) 25√3 m
 
Answer & Explanation Answer: D) 25√3 m

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Filed Under: Height and Distance
Exam Prep: Bank Exams

Q:

Consider the given question and decide which of the following statements is sufficient to answer the question.

If X scored an average of 50 marks in History, Language and Science, how much did he score in Science?

 

Statements :

1. His average score in History and Language is 25.
2. He got 30 marks in Language.

 

A) Both 1 and 2 are sufficient to answer the given question. B) 2 alone is sufficient while 1 alone is not sufficient to answer the given question
C) 1 alone is sufficient while 2 alone is not sufficient to answer the given question D) Neither 1 nor 2 is sufficient to answer the given question
 
Answer & Explanation Answer: C) 1 alone is sufficient while 2 alone is not sufficient to answer the given question

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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

Q:

If V is the brother of U, U is the sister of W and X is the husband of U, then U is V's

A) Aunt B) Sister
C) Sister-in-law D) Mother
 
Answer & Explanation Answer: B) Sister

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Filed Under: Blood Relations
Exam Prep: Bank Exams

Q:

If x2 + ax + b, when divided by x + 3, leaves a remainder of -1 and x2 + bx + a, when divided by x - 3, leaves a remainder of 39, then a+ b = ?

 

A) -14 B) -38
C) 14 D) 38
 
Answer & Explanation Answer: C) 14

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams