Q:

Logical puzzle

A boy and a girl are talking.
"I am a boy" - said the child with black hair.
"I am a girl" - said the child with white hair.

At least one of them lied. Who is the boy and who is the girl?

Answer

Our Solution:

They both lied.
The child with the black hair is the girl, and the child with the white hair is the boy.
(If only one lied they would both be boys or both be girls)

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Subject: Logic Puzzles

18 5175

Q:

Solve the following equations and find the value of abc?

A) 3	B) 6
C) 9	D) 12

Answer & Explanation Answer: B) 6

Explanation:

From the given equations,

$(a + b + c)^{2} = a^{2} + b^{2} + c^{2} + 2 (ab + bc + ca)$
${(6)}^{2} = 14 + 2 (ab + bc + ca)$
36 - 14 = 2(ab + bc + ca)
22/2 = ab + bc + ca
ab + bc + ca = 11

$a^{3} + b^{3} + c^{3} - 3 abc = (a + b + c) (a^{2} + b^{2} + c^{2} - ab - bc - ca)$
= (6) (14 - 11)
=(6)(3)
=18

Since, $a^{3} + b^{3} + c^{3} - 3 abc = 18$

36 - 3abc = 18

-3abc = 18 - 36

-3abc = -18

abc = 6.

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Filed Under: Math Puzzles
Exam Prep: Bank Exams , CAT

24 5174

Q:

You can use ______ to copy selected text, and ____to paste it in a document

A) CTRL+C, CTRL+V	B) CTRL+C, CTRL+P
C) SHIFT+C, ALT+V	D) SHIFT+C, ALT+P

Answer & Explanation Answer: A) CTRL+C, CTRL+V

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams
Job Role: Bank PO

26 5173

Q:

For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

A) Two	B) Three
C) Four	D) Six

Answer & Explanation Answer: D) Six

Explanation:

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Filed Under: Database

3 5173

Q:

Isotopes of an element have ______.

A) Same physical properties	B) Different chemical properties
C) Different number of neutrons	D) Different atomic number

Answer & Explanation Answer: C) Different number of neutrons

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

1 5170

Q:

Select the odd term out of the following?

A) Internet	B) Macintosh OSX
C) Linux Mint	D) Windows 8.1

Answer & Explanation Answer: A) Internet

Explanation:

Internet is not an operating system.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

17 5169

Q:

The purpose of the inclusion of Directive Principle of State Policy in the Indian Constitution is to establish:

A) Political democracy	B) Social democracy
C) Gandhian democracy	D) Social and economic democracy

Answer & Explanation Answer: D) Social and economic democracy

Explanation:

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Filed Under: Indian Politics

5 5169

Q:

Which of the statements given below are correct?

1. The author of the novel 'Atonement' is Ian McEwan.
2. The author of the novel 'The Sound and the Fury' is L. Ron Hubbard.
3. The author of the novel 'White Teeth' is Zadie Smith.

A) 1 and 2	B) 2 and 3
C) 1 and 3	D) 1, 2 and 3

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