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Q:

tan3A is equal to

A) 3tanA -­ tan3A(1 -­ 3tan2A) B) 3tanA + tan3A(1 -­ 3tan2A)
C) 3tanA -­ tan3A(1 + 3tan2A) D) 3tanA + tan3A(1 + 3tan2A)
 
Answer & Explanation Answer: A) 3tanA -­ tan3A(1 -­ 3tan2A)

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

What is the value of cos 4π/3?

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

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

By increasing the price of entry ticket to a fair in the ratio 11:16, the number of visitors to the fair has decreased in the ratio 19:9. In what ratio has the total collection increased or decreased?

A) decreased in the ratio 209:144 B) increased in the ratio 144:209
C) increased in the ratio 99:304 D) decreased in the ratio 304:99
 
Answer & Explanation Answer: A) decreased in the ratio 209:144

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

A bank offers 5% compound interest per half year. A customer deposits Rs. 3200 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:

A) Rs 976 B) Rs 244
C) Rs 488 D) Rs 122
 
Answer & Explanation Answer: C) Rs 488

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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

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

Q:

When a number is increased by 26, it becomes 113% of itself. What is the number?

A) 200 B) 312
C) 390 D) 234
 
Answer & Explanation Answer: A) 200

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

In a triangle the length of the side opposite the angle which measures 30 degree is 9√3 cm, what is the length of the side opposite to the angle which measures 60 degree?

A) 27 cm B) 9 cm
C) 12√3 cm D) (15√3)/2 cm
 
Answer & Explanation Answer: A) 27 cm

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

Q:

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 8 cm, 6 cm and 7.2 cm respectively, find length of BC?

A) 12.6 cm B) 9.3 cm
C) 8.1 cm D) 5.4 cm
 
Answer & Explanation Answer: A) 12.6 cm

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Filed Under: Simplification
Exam Prep: Bank Exams