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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What is the value of 88% of 1125 + 20% of 425?

 

A) 1025 B) 1125.2
C) 1075 D) 1055
 
Answer & Explanation Answer: C) 1075

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

5 52197
Q:

If (x- 7)2 + (y + 10)2 + (z - 6)2 = 0, then find the value of x + y+ z.

 

A) 1 B) 3
C) 5 D) 7
 
Answer & Explanation Answer: B) 3

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 52193
Q:

What is the probability of getting a sum 9 from two throws of a dice?

A) 1/2 B) 3/4
C) 1/9 D) 2/9
 
Answer & Explanation Answer: C) 1/9

Explanation:

In two throws of a die, n(S) = (6 x 6) = 36.

Let E = event of getting a sum ={(3, 6), (4, 5), (5, 4), (6, 3)}.

P(E) =n(E)/n(S)=4/36=1/9.

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Filed Under: Probability

80 52126
Q:

A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

A) 650 B) 690
C) 698 D) 700
 
Answer & Explanation Answer: C) 698

Explanation:

S.I. for 1 year =  Rs. (854 - 815) = Rs. 39.

S.I. for 3 years = Rs.(39 x 3) = Rs. 117.

Principal = Rs. (815 - 117) = Rs. 698

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Filed Under: Simple Interest
Exam Prep: GRE

259 52123
Q:

1960.196=19.6xthen what will be the value of x?

 

A) 1.96 B)  10.96
C)  0.0196 D) 0.196
 
Answer & Explanation Answer: C)  0.0196

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 52074
Q:

Given w = -2, x = 3, y = 0 & z = -1/2, find the value of w2(z2 + y2)

 

A) +-2 B) -2
C) 2 D) 4
 
Answer & Explanation Answer: C) 2

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 52046
Q:

x and y are integers

x + y < 11 , and x > 6

What is the smallest possible value of x - y ?

A) 1 B) 24
C) 4 D) -2
 
Answer & Explanation Answer: C) 4

Explanation:

The smallest value will be obtained by giving x the smallest possible value while y gets the largest possible value. The smallest value for x = 7. This means that y will have to be less than or equal to 3 (so that x + y <11), but we want the largest value of y which is 3.

The difference, x - y will be 4.

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Filed Under: Problems on Numbers
Exam Prep: GRE

7 52044
Q:

Find the missing number in the given number series?

5 11 21 44 ? 175

A) 86 B) 78
C) 94 D) 102
 
Answer & Explanation Answer: A) 86

Explanation:

Here the given number series is 5  11  21  44  ?  175

 

Now the given series follows a pattern, that

 

x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,...

 

Then the missing number is x2 - 2

 

= 44 x 2 - 2 = 88 - 2 = 86

 

Hence, the missing number in the number series is 86.

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Filed Under: Odd Man Out
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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2 51998