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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

What is the sum of all prime numbers between 60 and 80?

A) 272 B) 284
C) 351 D) 414
 
Answer & Explanation Answer: C) 351

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Filed Under: Numbers
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Q:

The corners of a square of side ‘a’ are cut away so as to form a regular octagon. What is the side of the octagon?

A) a(√2 –1) B) a(√3 –1)
C) a/√2+2 D) a/3
 
Answer & Explanation Answer: A) a(√2 –1)

Explanation:

Since we are forming a regular octagon

so AE = AL = FB = BG and so on

So AE = SB = x/√2

AE + EF + FB = side of square = a (Given)

So x/√2 + x + x/√2 = a

X = a/(√2+1) = a(√2 -1)

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Filed Under: Volume and Surface Area
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Q:

In a rectangle

A) Diagonals bisect opposite angles B) Consecutive sides are congruent
C) All sides are congruent D) Diagonals form two congruent triangles
 
Answer & Explanation Answer: D) Diagonals form two congruent triangles

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Filed Under: Volume and Surface Area
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Q:

If the number x4562 is divisible by 9, what is the face value of x?

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

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Filed Under: Problems on Numbers
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Q:

ABCD is a cyclic quadrilateral of which AB is the diameter. Diagonals AC and BD intersect at E. If ∠DBC = 35°, Then ∠AED measures

A) 35° B) 45°
C) 55° D) 90°
 
Answer & Explanation Answer: C) 55°

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Filed Under: Volume and Surface Area
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Q:

Find the approximate simple interest on Rs. 2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.

A) Rs. 43 B) Rs. 37
C) Rs. 33 D) Rs. 40
 
Answer & Explanation Answer: C) Rs. 33

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Filed Under: Simple Interest
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Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives

A) 10 – 121 B) 12 – 169
C) 14 – 225 D) 16 – 279
 
Answer & Explanation Answer: D) 16 – 279

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Filed Under: Odd Man Out
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Q:

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A) (11, 13, 15) B) (16, 18, 20)
C) (13, 15, 18) D) (22, 24, 26)
 
Answer & Explanation Answer: C) (13, 15, 18)

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Filed Under: Odd Man Out
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