Quantitative Aptitude - Arithmetic Ability Questions

Q:

3cosA is equal to

A) 4cos3A + 3cosA B) 4cos3A - 3cosA
C) 3cos3A + 3cosA D) 3cos3A - 3cosA
 
Answer & Explanation Answer: B) 4cos3A - 3cosA

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Q:

Coefficient of x2 in 4x3 - 2x2 + 2x -­ 3 are

A) 6 B) -2
C) 3 D) -3
 
Answer & Explanation Answer: B) -2

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Q:

A bag contains coins of denominations Rs.1, Rs.5 and Rs.10. Assuming there are equal number of Rs.1, Rs.5 and Rs.10, what will be the total number of coins in the bag be if the total money is Rs. 368?

A) 69 B) 96
C) 56 D) 65
 
Answer & Explanation Answer: A) 69

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Q:

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

 

A) 16.66% B) 66.66%
C) 33.33% D) 100%
 
Answer & Explanation Answer: C) 33.33%

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Q:

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

A) Rupee B) Pound
C) Yen D) Currency
 
Answer & Explanation Answer: D) Currency

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Q:

What is the equation of a line of slope 1/3 and y-intercept 5?

A) x - 3y = -15 B) x - 3y = 15
C) x + 3y = -15 D) x + 3y = 15
 
Answer & Explanation Answer: A) x - 3y = -15

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Q:

If Sec θ = 13/12, then Cot θ = ?

A) 12/5 B) 13/5
C) 5/13 D) 5/12
 
Answer & Explanation Answer: A) 12/5

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Q:

If x + 3y - 2z4 = 6, x + 232y + 3z = 33 and 17x + y +z + 2z =9,  then what is the value of 46x+ 131y ?

A) 414 B) 364
C) 384 D) 464
 
Answer & Explanation Answer: A) 414

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