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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Which of the following statement (s) is/are TRUE?

I. 4√3 > 3√4

II. 8√2 > 2√8

A) Only I B) Only II
C) Neither I nor I D) Both I and I
 
Answer & Explanation Answer: D) Both I and I

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 60811
Q:

The L.C.M of two numbers is 495 and their H.C.F is 5. If the sum of the numbers is 100, then their difference is 

A) 10 B) 46
C) 70 D) 90
 
Answer & Explanation Answer: A) 10

Explanation:

Let the numbers be x and (100-x).

 

Then,x100-x=5*495

 

 =>  x2-100x+2475=0

 

 =>  (x-55) (x-45) = 0

 

 =>  x = 55 or x = 45

 

  The numbers are 45 and 55

 

Required difference = (55-45) = 10

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Filed Under: HCF and LCM

151 60710
Q:

Direction: What will come in place of the question mark (?) in the following question?

504÷42x7-63+28 = ?

A) 72 B) 48
C) 62 D) 38
 
Answer & Explanation Answer:

Explanation:

504/42 × 7 - 63 + 28 = 84 – 63 + 28 = 49

Hence option 5 is correct.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , GATE

0 60702
Q:

If 6th March, 2005 is Monday, what was the day of the week on 6th March, 2004?

A) Sunday B) Saturday
C) Tuesday D) Wednesday
 
Answer & Explanation Answer: A) Sunday

Explanation:

The year 2004 is a leap year. So, it has 2 odd days.

But, Feb 2004 not included because we are calculating from March 2004 to March 2005.

So it has 1 odd day only.

The day on 6th March, 2005 will be 1 day beyond the day on 6th March, 2004.

Given that, 6th March, 2005 is Monday.

6th March, 2004 is Sunday (1 day before to 6th March, 2005).

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Filed Under: Calendar

248 60689
Q:

What is the square root of (√5 + 2)/(√5 – 2)?

 

A) √5 – √4   B) √5 + 2  
C) 5 + √2   D) 7
 
Answer & Explanation Answer: B) √5 + 2  

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 60635
Q:

ΔPQR is right angled at Q. If m∠R=300, then find the value of (cosP - 1/3).

 

A) 1/6 B)  (2√2-1)/√2
C)  -1/√3 D)  (√3-4)/2√3
 
Answer & Explanation Answer: A) 1/6

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

1 60596
Q:

If (x + 1x) = 2, then find the value of (x3 + 1x3) ÷ (x18 + 1x18)

 

A) 2/9 B) 5
C) 1 D) 1/9
 
Answer & Explanation Answer: C) 1

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Filed Under: Simplification
Exam Prep: Bank Exams

0 60360
Q:

Solve the following.

 

-4 - (-7 - 12 / 4) = ?

A) -2 B) 6
C) 0.75 D) -14
 
Answer & Explanation Answer: B) 6

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 60292