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Q:

If a-b=1 and $a^{3} - b^{3} = 61$ , then the value of ab will be

A) -20	B) 20
C) 30	D) 60

Answer & Explanation Answer: B) 20

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

A) 11 kms/hr	B) 6 kms/hr
C) 5.5 kms/hr	D) 3 kms/hr

Answer & Explanation Answer: D) 3 kms/hr

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

Q:

A dishonest dealer professes to sell his goods at cost price but uses a weight of 875 gms for the kilogram weight. His gain in percentage is

A) 17%	B) 14 5/7%
C) 14 2/7%	D) 14%

Answer & Explanation Answer: C) 14 2/7%

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

The average age of 36 students in a group is 14 years. When the teacher's age is included in it, the average increases by one. The teacher's age in years is

A) 31	B) 51
C) 36	D)

Answer & Explanation Answer: B) 51

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

Sum of two numbers is thrice their difference. Their ratio is

A) 1:2	B) 2:1
C) 3:1	D) 1:3

Answer & Explanation Answer: B) 2:1

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

A dealer marks his goods 20% above cost price. He then allows some discount on it and makes a profit of 8%. The rate of discount is

A) 4%	B) 6%
C) 10%	D) 12%

Answer & Explanation Answer: C) 10%

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

Two adjacent sides of a parallelogram are 21 cms and 20 cms. The diagonal joining the end points of these two sides is 29 cms. The area of the parallelogram (in sq.cms) is

A) 240	B) 120
C) 210	D) 420

Answer & Explanation Answer: D) 420

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

Q:

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

A) 8 days	B) 16 days
C) 30 days	D) 32 days

Answer & Explanation Answer: B) 16 days

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Filed Under: Time and Work
Exam Prep: Bank Exams

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