Quantitative Aptitude - Arithmetic Ability Questions

Q:

Sin6A + Cos6A - 1 is equal to

A) -3Sin2ACos2A B) 1 - 3 SinACosA
C) 1 + 3Sin2ACos2A D) 0
 
Answer & Explanation Answer: A) -3Sin2ACos2A

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 1096
Q:

What is the value of (cos30° + 1/2) ?

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

0 1095
Q:

A number is greater than 58 times its reciprocal by 3/4. What is the number?

A) -8 B) 12
C) -12 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Numbers
Exam Prep: Bank Exams

0 1095
Q:

What is the effective discount (in %) on two successive discounts of 20% and 10%?

A) 30 B) 32
C) 35 D) 28
 
Answer & Explanation Answer: D) 28

Explanation:
Report Error

View Answer Report Error Discuss

0 1095
Q:

The total surface area of a hemisphere is 166.32 sq cm, find its curved surface area?

A) 221.76 sq cm B) 36.96 sq cm
C) 110.88 sq cm D) 55.44 sq cm
 
Answer & Explanation Answer: C) 110.88 sq cm

Explanation:
Report Error

View Answer Report Error Discuss

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

0 1094
Q:

Suppose that the medians BD, CE and AF of a triangle ABC meet at G. Then AG: GF is

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

Explanation:
Report Error

View Answer Report Error Discuss

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

3 1093
Q:

The volume of a hemisphere is 19404 cm3. Find its diameter (in cm).

A) 42 B) 21
C) 84 D) 63
 
Answer & Explanation Answer: A) 42

Explanation:
Report Error

View Answer Report Error Discuss

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

1 1093
Q:

Volume of a cylinder is 2310 cubic cm. If circumference of its base is 44 cm, find the curved surface area of the cylinder?

A) 660 sq cm B) 1320 sq cm
C) 1980 sq cm D) 330 sq cm
 
Answer & Explanation Answer: A) 660 sq cm

Explanation:
Report Error

View Answer Report Error Discuss

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

1 1092