Quantitative Aptitude - Arithmetic Ability Questions

Q:

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x-axis to (-3,4). The co-ordinates of point R are

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

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Filed Under: Simplification
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Q:

The four walls and ceiling of a room of length 25 m, breadth 12 m and height 10 m are to be painted. Painter A can paint 200 m2 in 5 days, Painter B can paint 250 m2 in 2 days. If A and B work together, they will finish the job in

A) 6 days B) 6 10/33 days
C) 7 10/33  days D) 8 days
 
Answer & Explanation Answer: B) 6 10/33 days

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Filed Under: Area
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Q:

The area of a square is equal to its side, if the side is 1 unit.

A) Always B) Sometimes
C) Often D) Never
 
Answer & Explanation Answer: A) Always

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Q:

The point P (a,b) is first reflected in origin to P1 and P1 is reflected in Y­axis to (4,­3). The co­-ordinates of point P are

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

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Q:

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

A) 3721 B) 8648
C) 9545 D) 3421
 
Answer & Explanation Answer: D) 3421

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Filed Under: Odd Man Out
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Q:

If P : Q : R = 6 : 7 : 8 and R : S = 3 : 5, then what is P : S?

A) 18:25 B) 9:20
C) 11:24 D) 16:45
 
Answer & Explanation Answer: B) 9:20

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Filed Under: Ratios and Proportions
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Q:

If (9 - 3x) - (17x - 10) = -1, then the value of x is

A) 1 B) -1
C) 9/10 D) -0.9
 
Answer & Explanation Answer: A) 1

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Q:

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

A) 28 B) 87
C) 51 D) 17
 
Answer & Explanation Answer: C) 51

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Filed Under: Numbers
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