Exams


Q:

A Conical tent was erected by the army at a base camp with height 3 m and base diameter 10 m. If every person requires 3.92 cu.m air, then how many persons can be seated in that tent approximately?

A) 20 B) 19
C) 17 D) 22
 
Answer & Explanation Answer: A) 20

Explanation:

Given height of the conical tent = 3 m

Diameter = 10 => Radius = D/2 = 10/2 = 5 m 

Now, as the tent is in the conical form

Volume of the conical tent = πr2h3 

=> (22 x 5 x 5 x 3) / (7 x 3) 

= 22 x 25/7 

= 78.54 cu.m 

Given each person requires 3.92 cu.m of air 

=> Number of persons can be seated in the tent = 78.54/3.92 = 20.03 =~ 20

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Filed Under: Volume and Surface Area
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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17 5715
Q:

Consider the given statement and decide which of the given assumptions is/are implicit.

 

Statement :

 

'Triple your money in one year' - an advertisement.

 

Assumptions :

 

I. The assurance is not genuine.

II. People want their money multiplied.

 

 

A) Both assumptions I and II are implicit. B) Neither assumption I nor II is implicit
C) Only assumption I is implicit D) Only assumption II is implicit
 
Answer & Explanation Answer: D) Only assumption II is implicit

Explanation:
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Filed Under: Statement and Assumptions
Exam Prep: Bank Exams

0 5713
Q:

If it is possible to make a number which is the square of a two-digit odd number using the second, the fourth and the sixth digits of the number  93217648 and using each only once, which of the following is that two-digit odd number?

A) 17 B) 19
C) 15 D) 21
 
Answer & Explanation Answer: B) 19

Explanation:

Second, fourth and the sixth digits of the number are 3, 1 and 6. Using these digits only once we can make 361, which is a perfect square number. Hence, our answer is 19 x 19 = 361

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9 5711
Q:

Meghana alone would take 32 hours more to complete a job than both Meghana and Ganesh together. If Ganesh worked alone, he took 12 1/2 hours more to complete it than both Meghana and Ganesh worked together. What time would they take if both Meghana and Ganesh worked together?

A) 20 hrs B) 18 hrs
C) 22 hrs D) 20.5 hrs
 
Answer & Explanation Answer: A) 20 hrs

Explanation:

Time taken by both Meghana and Ganesh to work together is given by =

t1 x t2 

Where

t1 = 32 hrst2 = 12 12 hrs = 252 hrs

 

Therefore, time took by both to work together = 

32 x 252 = 16 x 25 = 4 x 5 = 20 hrs

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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9 5706
Q:

What is the value of cosec 120°

A) 2/√3 B) 2
C) -2/√3 D) -2
 
Answer & Explanation Answer: A) 2/√3

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

7 5704
Q:

Five boys are sitting in a circle. Ajay is between Ramesh and Damanik. Suleman is left to Vikas.Ramesh is left to Suleman. Who is sitting immediate right to Ajay?

A) Suleman B) Damanik
C) Vikas D) Ramesh
 
Answer & Explanation Answer: D) Ramesh

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams
Job Role: Bank PO

13 5703
Q:

Pavan and Sravan are two persons. If Pavan works with his actual efficiency and Sravan twice of his actual efficiency then it takes 25 days to complete the work. But If Pavan works twice of his actual efficiency and Sravan with his normal efficiency then the work is completed in 20 days. How many days would it take if Sravan alone works with his actual efficiency (in Days)?

A) 50 B) 100
C) 70 D) 35
 
Answer & Explanation Answer: B) 100

Explanation:

Let the Efficiency of pavan be E(P)

Let the Efficiency of sravan be E(S)

Here Work W = LCM(25,20) = 100

Now, E(P+2S) = 100/25 = 4 ....(1)

E(2P+S) = 100/20 = 5 ....(2)

Hence, from (1) & (2) we get

E(S) = 1

=> Number of days Savan alone work to complete the work  = 100/1 = 100 days.

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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10 5702
Q:

Which is the first Indian company to be listed on NASDAQ ?

A) Reliance B) TCS
C) HCL D) Infosys
 
Answer & Explanation Answer: D) Infosys

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams
Job Role: Bank PO

12 5701