Quantitative Aptitude - Arithmetic Ability Questions

Q:

α and β are the roots of quadratic equation. If α + β = 8 and α – β = 2√5, then which of the following equation will have roots α4 and β4?

A) x2 – 1522x + 14641 = 0 B) x2 + 1921x + 14641 = 0
C) x2– 1764x + 14641 = 0 D) x2+ 2520x + 14641 = 0
 
Answer & Explanation Answer: A) x2 – 1522x + 14641 = 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Ticket for an adult is Rs 1200 and a child is Rs 800 respectively. One child goes free with two adults. If a group has 25 adults and 5 children what is the discount the group gets?

A) 17.24 percent B) 24. percent
C) 24.41 percent D) 11.76 percent
 
Answer & Explanation Answer: D) 11.76 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If selling price is Rs. 72 and Gain percentage = 20%, calculate the Cost Price.

A) Rs.60 B) Rs.58
C) Rs.61 D) Rs.59
 
Answer & Explanation Answer: A) Rs.60

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

A) 41 B) 21
C) 42 D) 84
 
Answer & Explanation Answer: C) 42

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

The sum of squares of three positive integers is 323. If the sum of squares of two numbers is twice the third, their product is

A) 255 B) 260
C) 265 D) 270
 
Answer & Explanation Answer: A) 255

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Filed Under: Problems on Numbers
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Q:

Calculate the distance (in cm) of the chord from the centre of the circle, if the chord of length 48 cm is drawn in the circle of radius 25 cm.

A) 7 B) 14
C) 49 D) 56
 
Answer & Explanation Answer: A) 7

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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
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Q:

An equilateral triangle of area 300 cm2 is cut from its three vertices to form a regular hexagon. Area of hexagon is what percent of the area of triangle?

A) 66.66% B) 33.33%
C) 83.33% D) 56.41%
 
Answer & Explanation Answer: A) 66.66%

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Filed Under: Volume and Surface Area
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