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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

If x / y is an integer, which of the following statements need NOT always be true?

A) both x and y are integers B) only x is a integer
C) both are negative D) none
 
Answer & Explanation Answer: A) both x and y are integers

Explanation:

In case (A), x and y could, for example, both be equal fractions and x/y would be an integer.

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Filed Under: Numbers
Exam Prep: GRE

2 2904
Q:

Find the odd word/letters/number pair from the given alternatives.

 

A) Teacher and Student B) Chemistry and Science
C) History and Mathematics D) Air and Oxygen
 
Answer & Explanation Answer: C) History and Mathematics

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 2904
Q:

Sravan drove from home to a neighboring town at the speed of 50 km/h and on his returning journey, he drove at the speed of 45 km/h and also took an hour longer to reach home. What distance did he cover?

A) 350 kms B) 450 kms
C) 900 kms D) 700 kms
 
Answer & Explanation Answer: C) 900 kms

Explanation:

Let the distance he covered each way = d kms

According to the question,

d/45 - d/50 = 1

=> d = 450 kms.

 

Hence, the total distance he covered in his way = d + d = 2 d = 2 x 450 = 900 kms.

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Filed Under: Boats and Streams
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

13 2902
Q:

You put $750 into a certificate of deposit. Your simple annual interest rate is 4%. You receive a check for the interest at the end of each year. How long will it take to earn $150 in interest?

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

Explanation:

I=prt

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

3 2899
Q:

Selling price of a cellphone is increased by 20%. For this sale is decreased by 30%. Find the effect of total sales?

A) 16% B) 14.5%
C) 12% D) 10.5%
 
Answer & Explanation Answer: A) 16%

Explanation:

Let cost of each cell phone = Rs.100 & Sale = 100 phones.

Money receipt = Rs.(100 x 100) = Rs.10,000

New cost per cellphone = Rs.120 and New sale = 70 phones

New Money Receipt = Rs.(70 x 120) = Rs.8400

Then the effect of sales = decrease in money receipt = 

160010000 x 100 = 16%.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

14 2896
Q:

Find the volume (in cm3) of a hemisphere of diameter 7 cm.

 

A) 77   B) 63  
C) 89.83   D) 54.13
 
Answer & Explanation Answer: C) 89.83  

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

0 2893
Q:

Solve the following

 

24/(19 - 9 / 3 x 9) = ?

A) -3 B) -4
C) 3 D) 6
 
Answer & Explanation Answer: A) -3

Explanation:
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Filed Under: Simplification

1 2890
Q:

Two bus tickets from city K to L and three tickets from city K to M cost Rs. 77,  but three tickets from city K to L and two tickets from city K to M cost Rs. 73. What are the fares for cities L and M from K ?

A) Rs. 13 and Rs. 17 B) Rs. 17 and Rs. 19
C) Rs. 23 and Rs. 17 D) Rs. 13 and Rs. 19
 
Answer & Explanation Answer: A) Rs. 13 and Rs. 17

Explanation:

If fares for cities L and M from K are x and y respectively, then

2x + 3y = 77 or 6x + 9y = 231...(1)
3x + 2y = 73 or 6x + 4y = 146...(2)

subtracting 2 from 1, we get

5y = 85

y = Rs. 17 => x = Rs. 13

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

2 2889