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Q:

If 1/(cosecA ­ cotA) = x, then the value of x is

A) cosecA + cotA B) cosecA­ - cotA
C) cosec2A + cot2A D) √[cosec2A + cot2A]
 
Answer & Explanation Answer: A) cosecA + cotA

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

Q:

If (tanA + tanB)/(1 ­ tanAtanB) = x, then the value of x is

A) tan(A + B) B) tan(A -­ B)
C) cot(A + B) D) cot(A ­- B)
 
Answer & Explanation Answer: A) tan(A + B)

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Filed Under: Simplification
Exam Prep: Bank Exams

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

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

A) 196 sq cm B) 154 sq cm
C) 124 sq cm D) 98 sq cm
 
Answer & Explanation Answer: A) 196 sq cm

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

Q:

ΔABC is similar to ΔPQR. Length of AB is 18 cm and length of the corresponding side PQ is 12 cm. If area of ΔABC is 324 sq cm, what is the area of ΔPQR?

A) 72 sq cm B) 144 sq cm
C) 36 sq cm D) 487.5 sq cm
 
Answer & Explanation Answer: B) 144 sq cm

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

Q:

5 hrs after a goods train passed a station, another train travelling at a speed of 70 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 9 hours. What is the speed of the goods train?

A) 45 km/hr B) 54 km/hr
C) 67.5 km/hr D) 36 km/hr
 
Answer & Explanation Answer: A) 45 km/hr

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

Q:

If 2x + 3y = 0 and 3x ­- 4y = 34, then x ­- y = ______

A) 10 B) -10
C) 2 D) -2
 
Answer & Explanation Answer: A) 10

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

The average revenues of 9 consecutive years of a company is Rs 76 lakhs. If the average of first 5 years is Rs 71 lakhs and that of last 5 years is Rs 83 lakhs, find the revenue for the 5th year.

A) Rs 88 lakhs B) Rs 84 lakhs
C) Rs 86 lakhs D) Rs 82 lakhs
 
Answer & Explanation Answer: C) Rs 86 lakhs

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Filed Under: Average
Exam Prep: Bank Exams , CAT