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Q:

If $13 ∆ 3 = 20, 12 ∆ 7 = 10 and 12 ∆ 5 = 14$ then find the value of $16 ∆ 2$ ?

A) 14	B) 4
C) 28	D) 8

Answer & Explanation Answer: C) 28

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Filed Under: Coding and Decoding
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Q:

In a row, there are 12 professors between Akash and Bhumi and Akash being the first professor in the row. There are 6 professors between Bhumi and Charu. If there are 15 professors after Charu, then how many minimum professors are there in the row?

A) 21	B) 24
C) 20	D) 22

Answer & Explanation Answer: D) 22

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

Q:

If x + y = 10 and $x^{2} + y^{2} = 68$ , then find xy

A) 21	B) 24
C) 25	D) 16

Answer & Explanation Answer: D) 16

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Filed Under: Simplification
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Q:

What is the value of the expression $a^{3} - 5 + \frac{28}{16 a}$ , when a = 2?

A) 2	B) 5
C) 7	D) 8

Answer & Explanation Answer: C) 7

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Filed Under: Simplification
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Q:

In a row, there are 8 girls between Aruna and Bimla and Aruna being the first girl in row. There are 5 girls between Bimla and Chetna. If there are 14 girls after Chetna, then how many minimum girls are there in the row?

A) 13	B) 15
C) 18	D) 16

Answer & Explanation Answer: C) 18

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Filed Under: Arithmetical Reasoning
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Q:

What is the value of $[(\sec 2 θ + 1) \sqrt{\sec^{2} θ - 1}] x \frac{1}{2} (cotθ - tanθ)$ ?

A) 0	B) 1
C) cosec θ	D) sec θ

Answer & Explanation Answer: B) 1

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Filed Under: Simplification
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Q:

What is the value of $[(\sin 59 ° \cos 31 ° + \cos 59 ° \sin 31 °) \div (\cos 20 ° \cos 25 ° - \sin 20 ° \sin 25 °)] ?$

A) 1/√2	B) 2√2
C) √3	D) √2

Answer & Explanation Answer: D) √2

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Filed Under: Simplification
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Q:

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

Answer & Explanation Answer: D) – 1

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Filed Under: Simplification
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