Quantitative Aptitude - Arithmetic Ability Questions

Q:

If cosA = x, then x is

A) √(1 - cos2A) B) √(1 + sin2A)
C) √(1 + cos2A) D) √(1 - sin2A)
 
Answer & Explanation Answer: D) √(1 - sin2A)

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1789
Q:

If sin ­- 5π/3 = x, then the value of x is

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1789
Q:

What is the value of Tan 45° - 1/√3 Sec 60°?

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1789
Q:

Of the 3 numbers whose average is 70, the first is 1/9 times the sum of other 2. The first number is

A) 32 B) 21
C) 14 D) 42
 
Answer & Explanation Answer: B) 21

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 1789
Q:

The ratio of the volume of two cylinders is 7 : 3 and the ratio of their heights is 7 : 9. If the area of the base of the second cylinder is 154 sq. cm, then what will be the radius (in cm) of the first cylinder?

A) 6√2 B) 6√3
C) 7√2 D) 7√3
 
Answer & Explanation Answer: D) 7√3

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1788
Q:

The measure of the four successive angles of a quadrilateral are in the ratio 7 : 11 : 7 : 11. The quadrilateral is a ______.

A) trapezium B) rectangle
C) parallelogram D) square
 
Answer & Explanation Answer: C) parallelogram

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1788
Q:

ABCD is a cyclic quadrilateral DBA=50° and ADE=33°, then the measurement of BCD is

A) 83° B) 80°
C) 75° D) 60°
 
Answer & Explanation Answer: A) 83°

Explanation:
Report Error

View Answer Report Error Discuss

0 1788
Q:

What is the area of the sector whose central angle is 90° and radius of the circle is 14 cm?

A) 308 sq cm B) 77 sq cm
C) 154 sq cm D) 231 sq cm
 
Answer & Explanation Answer: C) 154 sq cm

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

1 1788