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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

ΔDEF is right angled at E. If cosecD = 25/24, then what is the value of cosF ?

 

A) 25/7   B) 24/7  
C) 24/25   D) 7/24
 
Answer & Explanation Answer: C) 24/25  

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 46258
Q:

When 0.232323.... is converted into a fraction , then the result is 

 

A) 1/5 B) 2/9
C) 23/99 D) 23/100
 
Answer & Explanation Answer: C) 23/99

Explanation:

0.232323...=0.23 =2399

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Filed Under: Decimal Fractions

73 46128
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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1 46101
Q:

Three unbiased coins are tossed.What is the probability of getting at least 2 heads?

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

Explanation:

Here S= {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}.

Let E = event of getting at least two heads = {THH, HTH, HHT, HHH}.

P(E) = n(E) / n(S)

      = 4/8= 1/2

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Filed Under: Probability

92 46077
Q:

What is the value of (2 + tan600) ?

 

A)  3   B)  2/√3  
C)  4/√3   D)  2+√3
 
Answer & Explanation Answer: D)  2+√3

Explanation:
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0 45962
Q:

If x + y + z = 6 and xy + zx + zy = 10, then find the value of x3 + y3 + z3 - 3xyz

 

A) 16 B) 26
C) 36 D) 46
 
Answer & Explanation Answer: C) 36

Explanation:
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1 45916
Q:

If x2 + kx + k = 0 has repeated roots, then the value of k will satisfy :

 

 

A) k<0 or k>4 B) k=4 only
C) 0<k<4 D) k=4 or k=0
 
Answer & Explanation Answer: D) k=4 or k=0

Explanation:
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Filed Under: Simplification
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0 45899
Q:

Find the next number in the given number series?

35, 36, 55, 111, ?

A) 278.5 B) 264.5
C) 212.5 D) 202
 
Answer & Explanation Answer: A) 278.5

Explanation:

The given number series is 35, 36, 55, 111, ?

35

35 x 1 + 1 = 36

36 x 1.5 + 1 = 55

55 x 2 + 1 = 111

111 x 2.5 + 1 = 278.5

 

Hence, the next number in the given number series is 278.5.

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Filed Under: Odd Man Out
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