Quantitative Aptitude - Arithmetic Ability Questions

Q:

For triangle ABC, find equation of median AD if co­-ordinates of points A, B and C are (2,­4), (3,0) and (5,­2) respectively?

A) 3x -­ 2y = 14 B) 3x -­ 2y = 2
C) 3x + 2y = 14 D) 3x + 2y = 2
 
Answer & Explanation Answer: A) 3x -­ 2y = 14

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Filed Under: Simplification
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Q:

The value of (2+32-3-342) is 

A) 36 B) 336
C) 49 D) 49+3
 
Answer & Explanation Answer: C) 49

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Q:

A and B together can do a piece of work in 10 days. If A can do the work in 15 days, find in how many days that B alone can do the same work. Given below are the steps involved in solving the above problem. Arrange them in sequential order.

 

A) One day's work of B is 1/10 - 1/15

B) One day's work of A and B is 1/10 and One day's work of A is 1/15

C) B alone can do the work in 30 days

D) One day's work of B is 1/30

 

A) BADC B) ADCB
C) BCAD D) BDAC
 
Answer & Explanation Answer: A) BADC

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Filed Under: Time and Work
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Q:

If k is the largest possible real number such that p4+q4=(p2+kpq+q2)(p2-kpq+q2), then the value of k is

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

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Q:

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

A) 12 : 144 B) 20 : 400
C) 15 : 225 D) 17 : 285
 
Answer & Explanation Answer: D) 17 : 285

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Q:

In what ratio is the segment joining the points (2,5) and (­6,­10) divided by the y­axis?

A) 3:1 B) 1:3
C) 2:5 D) 5:2
 
Answer & Explanation Answer: B) 1:3

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Filed Under: Ratios and Proportions
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Q:

If 2cosAsinB = x, then the value of x is?

A) sin(A+B) + sin(A­-B) B) cos(A+B) + cos(A­-B)
C) sin(A+B) ­- sin(A-­B) D) cos(A­-B) -­ cos(A+B)
 
Answer & Explanation Answer: C) sin(A+B) ­- sin(A-­B)

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Q:

The value of (1 - √2) + (√2 - √3) + (√3 - √4) + ..... + (√15 - √16) is

A) 0 B) 1
C) -3 D) 4
 
Answer & Explanation Answer: C) -3

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