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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Select the odd number from the given alternatives.

A) 110 B) 140
C) 154 D) 198
 
Answer & Explanation Answer: B) 140

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

The equation of a line is given by 4y-6x+9=0. Find the slope of other line which is perpendicular to it.

 

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

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Filed Under: Numbers
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Q:

What is the value of sin ­7π/4c?

A) ­1/√2 B) 2/√3
C) 1/√2 D) ­2/√3
 
Answer & Explanation Answer: C) 1/√2

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

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Q:

In ΔPQR, ∠R = 54°, the perpendicular bisector of PQ at S meets QR at T. If ∠TPR = 46°, then what is the value (in degrees) of ∠PQR?

A) 25 B) 40
C) 50 D) 60
 
Answer & Explanation Answer: B) 40

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

P, Q and R together can make a table in 40 minutes. P and Q together can make it in 60 minutes. How much time (in minutes) will R alone take to make the table?

A) 100 B) 120
C) 90 D) 150
 
Answer & Explanation Answer: B) 120

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Filed Under: Time and Work
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Q:

The alcohol and water in a mixture are in the ratio of 7 : 8 respectively. If 11 litre water is added to it, then the ratio of alcohol and water in the new mixture becomes 3 : 5. What is the total quantity (in litres) of the alcohol in the new mixture?

A) 21 B) 24
C) 35 D) 32
 
Answer & Explanation Answer: A) 21

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Filed Under: Alligation or Mixture
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Q:

Three consecutive integers form the lengths of a right-angled triangle. How many sets of such three consecutive integers is/are possible?

A) Only one B) Only two
C) Only three D) Infinitely many
 
Answer & Explanation Answer: A) Only one

Explanation:

let n-1, n, n+1 be 3 consecutive integers

So

(n+1)^2= n^2+ (n-1)^2

(n+1)^2-(n-1)^2= n^2

4n = n^2

So n = 0 or n = 4

n can’t be 0 as n-1 will be negative then

So 3,4 and 5 is the only triplet formed.

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Filed Under: Volume and Surface Area
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Q:

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If lengths of PS, SQ and PR are 6 cm, 9 cm and 12.5 cm respectively, what is the length of TR?

A) 7.5 cm B) 5 cm
C) 10 cm D) 2.5 cm
 
Answer & Explanation Answer: A) 7.5 cm

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

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