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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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What is the area (in sq cm) of a rhombus if the lengths of its diagonals are 25 cm and 20 cm?

A) 500	B) 250
C) 125	D) 200

A) 500

B) 250

C) 125

D) 200

Answer & Explanation Answer: B) 250

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Exam Prep: Bank Exams

0 1080

If $\frac{a^{2} + b^{2}}{c^{2}} = \frac{b^{2} + c^{2}}{a^{2}} = \frac{c^{2} + a^{2}}{b^{2}} = \frac{1}{k} (k \neq 0)$ then k =

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

A) 2

B) 1

C) 0

D) 1/2

Answer & Explanation Answer: D) 1/2

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Filed Under: Simplification
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0 1080

Rearrange the jumbled up letters in their natural sequence and find the odd one out.

A) UTNA	B) EINEC
C) OMEHRT	D) ROBEHRT

A) UTNA

B) EINEC

C) OMEHRT

D) ROBEHRT

Answer & Explanation Answer: D) ROBEHRT

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0 1080

What is the value of $\sin (90 ° + 2 A) [4 - \cos 2 (90 ° - 2 A)] ?$

A) 2(cos3 A – sin3 A)	B) 2(cos3 A + sin3 A)
C) 4(cos6 A+ sin6 A)	D) 4(cos6 A – sin6 A)

A) 2(cos3 A – sin3 A)

B) 2(cos3 A + sin3 A)

C) 4(cos6 A+ sin6 A)

D) 4(cos6 A – sin6 A)

Answer & Explanation Answer: D) 4(cos6 A – sin6 A)

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What is the value of $14^{3} + 16^{3} + 18^{3} + . . . + 30^{3} ?$

A) 134576	B) 120212
C) 115624	D) 111672

A) 134576

B) 120212

C) 115624

D) 111672

Answer & Explanation Answer: D) 111672

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0 1080

Marked price of an item is Rs 900. On purchase of 2 items discount is 16%, on purchase of 5 items discount is 44%. Raksha buys 7 items, what is the effective discount?

A) 10 percent	B) 16 percent
C) 36 percent	D) 9.6 percent

A) 10 percent

B) 16 percent

C) 36 percent

D) 9.6 percent

Answer & Explanation Answer: C) 36 percent

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Filed Under: Percentage
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3 1080

The value of -261+(-380)-(-521)+821-(-121)

A) 833	B) 825
C) 822	D) 800

A) 833

B) 825

C) 822

D) 800

Answer & Explanation Answer: C) 822

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The incomes of S and T are in the ratio 3 : 4 and their expenditures are in the ratio 1 : 1. If S saves Rs 4000 and T saves Rs 22000, then what will be the income (in Rs) of S?