3
Q:

# How much money did the owner lose?

 A) Rs. 40 B) Rs. 200 C) Rs. 60 D) Rs. 100

Explanation:

The owner first lost Rs. 100 in cash, but after the thief bought Rs. 60 goods, he get back that Rs. 100 but he lost Rs. 60 value of goods and Rs. 40 in change.

So, a total of 60 + 40 = Rs. 100 the owner lose.

Subject: Math Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO
Q:

Solve the following equations and find the value of abc?

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

Explanation:

From the given equations,

$(a+b+c)2=a2+b2+c2+2(ab+bc+ca)$

36 - 14 = 2(ab + bc + ca)
22/2 = ab + bc + ca
ab + bc + ca = 11

= (6) (14 - 11)
=(6)(3)
=18

Since,

36 - 3abc = 18

-3abc = 18 - 36

-3abc = -18

abc = 6.

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

24 7583
Q:

Find the missing number in the following puzzle?

 A) 86 B) 98 C) 104 D) 112

Explanation:

The logic in the given puzzle:

2+3 = 8
3+7 = (7+2)x3 = 27
4+5 = (5+3)x4 = 32
5+8 = (8+4)x5 = 60
6+7 = (7+5)x6 = 72

Similarly,

7+8 = (8+6)x7 = 98.

Filed Under: Math Puzzles
Exam Prep: Bank Exams

66 19840
Q:

Following the same logic, crack this mathematical puzzle ?

 A) 4 B) 2 C) 1 D) 3

Explanation:

Logic Followed in the given puzzle ::

The logic here is the number of circles in each 4 digit number mentioned.

8801 has 5

5261 has 1

and so on

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

23 17054
Q:

What value will replace the question mark in the puzzle?

 A) 64 B) 56 C) 46 D) 36

Explanation:

Logic ::

First number on the right hand side is the second number in the left side of equation ( and ) second number on the right side is the sum of two numbers on the left side of the equation.

Hence, 2 + 4 = 4(2+4) = 46.

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

19 2293
Q:

Solve the value of D?

A + B = 15 .... (1)

B x C = 84 .... (2)

C ÷ 4 = 3  .... (3)

B + D = 18 .... (4)

From (3), we get C = 12

From (2), we get B = 84/12 = 7

From (1), we get A = 15 - 7 = 8

From (4), we get D = 18 - 7 = 11

Hence, D = 11.

Subject: Math Puzzles Exam Prep: Bank Exams
Job Role: Bank Clerk , Bank PO

3835
Q:

Can you solve this maths puzzle?

 A) 10 B) 12 C) 14 D) 18

Explanation:

The logic in this puzzle is summing the result of [subtraction of upper two digits] & [addition of lower two digits]

Hence, the result is

(5 - 3) + (2 + 8) = 2 + 10 = 12.

Filed Under: Math Puzzles
Exam Prep: Bank Exams

22 2592
Q:

90% of people fail to solve this math puzzle?

 A) 45 B) -20 C) 35 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.

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

21 3162
Q:

Can you solve this riddle?

 A) 1 B) 3 C) 5 D) 0

Explanation:

5 + 5 = 10

5x 2 + 2 = 12

5 x 2 - 1 x 5 = 5

Hence, $∆$ = 1.