Quantitative Aptitude - Arithmetic Ability Questions

Q:

Which of the following numbers is divisible by 9?

A) 12321 B) 12345
C) 45654 D) 45678
 
Answer & Explanation Answer: A) 12321

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Q:

In a triangle the length of the side opposite the angle which measures 60° is 15 cm, what is the length of the side opposite to the angle which measures 90°? 

A) 15 cm B) (15√3)/2 cm
C) 10√3 cm D) 10 cm
 
Answer & Explanation Answer: C) 10√3 cm

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Q:

ΔABC is right angled at B. BD is the altitude. AD is 8 cm and DC is 50 cm. What is the length of BD?

A) 25 cm B) 20 cm
C) 16 cm D) 15 cm
 
Answer & Explanation Answer: B) 20 cm

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Q:

The angle of elevation of the top of a tower at a distance of 25 m from its foot is 60 deg. The approximate height of the tower is

A) 20.3 m B) 15.3 m
C) 36.3 m D) 43.3 m
 
Answer & Explanation Answer: D) 43.3 m

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Filed Under: Height and Distance
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Q:

Consider the two similar triangles ABC and DEF. Which of the following is correct about the ratio of the area of the triangle ABC and DEF?

 

 

A) ABDE=EFBC=ACDF B) ABDE2=BCEF2=ACDF2
C) ABDE=BCEF=DFAC D) None of these
 
Answer & Explanation Answer: B) ABDE2=BCEF2=ACDF2

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Filed Under: Area
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Q:

What is the simplified value of 31253 + 4253 + 36753

A) 18253 B) 5253
C) 9√125 D) 1253
 
Answer & Explanation Answer: A) 18253

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Q:

ΔDEF is right angled at E. If m∠F = 30 deg, then find the value of (sinD - 1/3).

A) -1/2√3   B) (3√3-2)/6  
C) (√2-√3)/√6   D) (2√2-1)/√2
 
Answer & Explanation Answer: B) (3√3-2)/6  

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Q:

At what point does the line 3x + y = -6 intercept the x-axis?

A) (2,0) B) (-2,0)
C) (0,-6) D) (0,6)
 
Answer & Explanation Answer: B) (-2,0)

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