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If (1/x) + (1/y) + (1/z) = 0 and x + y + z = 9, then what is the value of $x^{3} + y^{3} + z^{3} - 3 xyz$ ?

A) 81	B) 361
C) 729	D) 6561

A) 81

B) 361

C) 729

D) 6561

Answer & Explanation Answer: C) 729

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Filed Under: Simplification
Exam Prep: Bank Exams

A, B and C are three students. A got 18% more marks than B and 12% less than C. If B got 220 marks, then how much marks C has got?

A) 295	B) 230
C) 224	D) 245

A) 295

B) 230

C) 224

D) 245

Answer & Explanation Answer: A) 295

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Filed Under: Percentage
Exam Prep: Bank Exams

For an article the profit is 190% of the cost price. If the cost price increase by 10% but the selling price remains same, then profit is what percentage of selling price (approximately)?

A) 54	B) 62
C) 73	D) 163

A) 54

B) 62

C) 73

D) 163

Answer & Explanation Answer: B) 62

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

The average age of 6 members of a family is 20 years. If the age of the servant is included, then the average age increase by 25%. What is the age (in years) of the servant?

A) 30	B) 35
C) 50	D) 55

A) 30

B) 35

C) 50

D) 55

Answer & Explanation Answer: D) 55

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

A) 50	B) 55
C) 60	D) 65

A) 50

B) 55

C) 60

D) 65

Answer & Explanation Answer: B) 55

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

The length of two parallel sides of a trapezium are 18 m and 24 m. If its height is 12 m, then what is the area (in sq.m) of the trapezium?

A) 126	B) 252
C) 504	D) 1024

A) 126

B) 252

C) 504

D) 1024

Answer & Explanation Answer: B) 252

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

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?