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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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Find k, if the line 4x - y = 1 is perpendicular to the line 5x - ky = 2?

A) 20	B) -20
C) 4	D) -4

A) 20

B) -20

C) 4

D) -4

Answer & Explanation Answer: B) -20

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1295

If $x^{3} - 4 x^{2} + 19 = 6 (x - 1)$ , then what is the value of $[x^{2} + (1 / x - 4)]$ ?

A) 3	B) 5
C) 6	D) 8

A) 3

B) 5

C) 6

D) 8

Answer & Explanation Answer: C) 6

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1294

What is the value of $\tan (\frac{π}{4} + A) \times \tan (\frac{3 π}{4} + A) ?$

A) 1	B) 0
C) cot A/2	D) – 1

A) 1

B) 0

C) cot A/2

D) – 1

Answer & Explanation Answer: D) – 1

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Filed Under: Simplification
Exam Prep: Bank Exams

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If the ratio of the angle bisector segments of the two equiangular triangles are in the ratio of 3:2 then what is the ratio of the corresponding sides of the two triangles?

A) 2:3	B) 3:2
C) 6:4	D) 4:6

A) 2:3

B) 3:2

C) 6:4

D) 4:6

Answer & Explanation Answer: B) 3:2

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

2 1294

A superfast Duronto express running at 90 kmph overtakes a bike running at 36 kmph in 25 seconds. What is the length of the train in meters?

A) 375 m	B) 225 m
C) 275 m	D) 325 m

A) 375 m

B) 225 m

C) 275 m

D) 325 m

Answer & Explanation Answer: A) 375 m

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

2 1294

Find the remainder when $4^{13}$ divided by 3?

A) 1	B) 2
C) 0	D) 3

A) 1

B) 2

C) 0

D) 3

Answer & Explanation Answer: A) 1

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

1 1294

Determine the value of $(\frac{1}{r} + \frac{1}{s})$ when $r^{3} + s^{3} = 0 and r + s = 6$ ?

A) 0	B) 0.5
C) 1	D) 2

A) 0

B) 0.5

C) 1

D) 2

Answer & Explanation Answer: B) 0.5

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Filed Under: Square Roots and Cube Roots

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The average marks of 40 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 73 instead of 37. What is the value of correct average?