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Q:

If 2cos2A - 1 = x, then the value of x is

A) cosec4A - sin4A B) cos4A - sin4A
C) cos4A - tan4A D) cosec4A - tan4A
 
Answer & Explanation Answer: B) cos4A - sin4A

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

A cylindrical capsule has hemispherical ends of the radii equal to radius of the cylindrical part. If length of the capsule is 40 m and radius 6 m, what is the total surface area of this capsule?

A) 3017.14 sq mts B) 4525.71 sq mts
C) 1508.57 sq mts D) 754.29 sq mts
 
Answer & Explanation Answer: C) 1508.57 sq mts

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

Q:

If the radius of a circle is increased by 21%, then its area will increase by what percent?

A) 42 percent B) 21 percent
C) 23.205 percent D) 46.41 percent
 
Answer & Explanation Answer: D) 46.41 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

A can do a work in 15 days and B in 20 days. If they work on it together for 5 days, then what fraction of work is left?

A) 2/9 B) 3/10
C) 5/12 D) 1/4
 
Answer & Explanation Answer: C) 5/12

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Filed Under: Time and Work
Exam Prep: Bank Exams

Q:

If √(cosec2A - 1) = x, then the value of x is

A) tanA B) sinA
C) cosA D) cotA
 
Answer & Explanation Answer: D) cotA

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

If cos -300° = x, then the value of x is

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

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

A man travels 420 kilometres in, partly by rail and partly by steamer. He spends 8 hours more time on steamer. If the velocity of the steamer is 35 km/hr and the velocity of rail is 65 km/hr, how much distance does he cover by steamer?

A) 395 km B) 329 km
C) 494 km D) 592 km
 
Answer & Explanation Answer: B) 329 km

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Filed Under: Time and Distance
Exam Prep: Bank Exams

Q:

If 4(4x + 5) > 2x - 1 > 4x - 3, then the value of x is

A) 2 B) 3
C) -2 D) 0
 
Answer & Explanation Answer: D) 0

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Filed Under: Simplification
Exam Prep: Bank Exams