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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) ABDG B) PQSV
C) JKMQ D) NOQT
 
Answer & Explanation Answer: C) JKMQ

Explanation:
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Q:

Find the appropriate value of '?' in (14.998)3 = ?

 

A) 3573 B) 4096
C) 3378 D) 3374
 
Answer & Explanation Answer: D) 3374

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What should come in place of question mark (?) in the following question?

12.5 × 3.2 × 8.8 = ?

A) 358 B) 355
C) 354 D) 356
 
Answer & Explanation Answer:

Explanation:

12.5 × 3.2 × 8.8 = 352

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Q:

∆DEF is right angled at E. If secD = 17/8, then what is the value of cosF?

 

A) 15/17   B) 15/8  
C) 8/17   D) 17/15
 
Answer & Explanation Answer: A) 15/17  

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Q:

ΔXYZ is right angled at Y. If sinX = 4/5, then what is the value of cosZ ?

 

A) 3/4 B) 5/3
C) 4/5 D) 4/3
 
Answer & Explanation Answer: C) 4/5

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Q:

Select the option that can replace the question mark (?) in the following equation.

 

0.23 - 0.130.2 + 0.12

 

A) 1/18 B) 3/40
C) -7/90 D) 7/90
 
Answer & Explanation Answer: D) 7/90

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Q:

A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.

A) Rs.4000 B) Rs.9000
C) Rs.5000 D) Rs.6000
 
Answer & Explanation Answer: D) Rs.6000

Explanation:

Let sum = P and original rate = R. Then

[(P * (R+2) * 3)/100] - [ (P * R * 3)/100] = 360

3P*(R+2) - 3PR = 36000

3PR + 6P - 3PR = 36000

6P = 36000

P = 6000

 

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Filed Under: Simple Interest
Exam Prep: GRE
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Q:

Find the next number in the given number series?

11, 5.5, 10, 6.5, 9, ?

A) 6.5 B) 7.5
C) 8.5 D) 10.5
 
Answer & Explanation Answer: B) 7.5

Explanation:

The given number series follows a pattern that

11

11 - 5.5 = 5.5

5.5 + 4.5 = 10

10 - 3.5 = 6.5

6.5 + 2.5 = 9

9 - 1.5 = 7.5

 

Hence, the next number in the given number series is 7.5.

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