Exams Questions and Answers

Q:

The most reactive of the following metals is

A) Al	B) Ca
C) Ni	D) Pb

Answer & Explanation Answer: B) Ca

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

1 54948

Q:

If $cosθ = 4 / 5$ , then $(secθ + cosecθ) =$

A) 7/5	B) 15/12
C) 35/12	D) 12/5

Answer & Explanation Answer: C) 35/12

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Filed Under: Simplification
Exam Prep: Bank Exams

1 54925

Q:

Solve the following:

$\frac{1}{1 + sinθ} + \frac{1}{1 - sinθ} = ?$

A) 2cos2θ	B) 1
C) 0	D) 2sec2θ

Answer & Explanation Answer: D) 2sec2θ

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 54899

Q:

What is the general formula of alkenes?

A) CnH2n	B) CnH2n+2
C) CnH2n-2	D) CnH2n-1

Answer & Explanation Answer: A) CnH2n

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Filed Under: Chemistry
Exam Prep: Bank Exams

2 54889

Q:

x and y are integers

x + y < 11 , and x > 6

What is the smallest possible value of x - y ?

A) 1	B) 24
C) 4	D) -2

Answer & Explanation Answer: C) 4

Explanation:

The smallest value will be obtained by giving x the smallest possible value while y gets the largest possible value. The smallest value for x = 7. This means that y will have to be less than or equal to 3 (so that x + y <11), but we want the largest value of y which is 3.

The difference, x - y will be 4.

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Filed Under: Problems on Numbers
Exam Prep: GRE

7 54724

Q:

$\frac{4}{5} + \frac{4}{7} = ?$

A) 8/12	B) 48/35
C) 8/35	D) 16/35

Answer & Explanation Answer: B) 48/35

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Filed Under: Simplification
Exam Prep: Bank Exams

1 54696

Q:

If '+' means x, '-' means /, 'x' means + and '/' means -, compute the value of the expression

17 + 6 x 13 / 8

A) 100	B) 107
C) 110	D) 109

Answer & Explanation Answer: B) 107

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 54661

Q:

If $x^{2} = 25^{2} - 15^{2},$ then find the value of x?

A) 40	B) 50
C) 20	D) 25

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