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Q:

Qamar gained 16% on the resale of a used stereo. If he purchased the item for Rs. 1500, how much did he sell it for?

A) Rs. 1740	B) Rs. 1660
C) Rs. 1600	D) Rs. 1820

Answer & Explanation Answer: A) Rs. 1740

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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

Q:

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

AED, EIH, INL, ?, QAT

A) MTP	B) KPR
C) LNS	D) MNH

Answer & Explanation Answer: A) MTP

Explanation:

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Filed Under: Alphabet Test
Exam Prep: Bank Exams

Q:

90% of people fail to solve this math puzzle?

ninety_percent_fail_to_answer_this1588595933.jpg image

A) 45	B) -20
C) 35	D) -60

Answer & Explanation Answer: D) -60

Explanation:

A - A - A = 20
B - B - B = 15
C - C - C = 25

A = -20
B = -15
C = -25

=> A + B + C = (-20)+(-15)+(-25) = -20 - 15 - 25 = -60.

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Filed Under: Math Puzzles
Exam Prep: CAT , Bank Exams
Job Role: Bank Clerk , Bank PO

Q:

In the given figure, ABCDEF is a regular hexagon whose side is 6 cm. APF, QAB, DCR and DES are equilateral triangles. What is the area (in sq.cm) of the shaded region?

A) 24√3	B) 18√3
C) 72√3	D) 36√3

Answer & Explanation Answer: C) 72√3

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

Q:

Which of the statements given below are correct?

A) Dani Pedrosa won the 2017 Qatar Motorcycle Grand Prix MotoGP.

B) Bernhard Langer won the Golf 2017 BMW PGA Championship.

C) Dustin Johnson won the Formula One 2017 Abu Dhabi Grand Prix.

A) Only B	B) B and C
C) A, B and C	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

Q:

In a quadrilateral PQRS, l_S= 90°. A circle (o, r) touches the sides PQ, QR, RS and SP at A, B, C and D respectively. If QR= 38 cm, RS = 25 cm and QA = 27 cm, find 'r'.

A) 16 cm	B) 12 cm
C) 14 cm	D) 10 cm

Answer & Explanation Answer: C) 14 cm

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

Which of the statements given below are correct?

A) Maverick Viñales won the 2017 Qatar Motorcycle Grand Prix MotoGP.
B) In 2017, Zaheer Khan captained the IPL team Royal Challengers Bangalore.
C) In 2017, Gautam Gambhir captained the IPL team Kolkata Knight Riders.

A) Only A	B) Only B
C) Only C	D) A & C

Answer & Explanation Answer: D) A & C

Explanation:

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Filed Under: Sports

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