Math Puzzles Questions

Q:

Can you crack the code?

Answer

394  is the code to unlock the key.



If you take the second statement, 7 is incorrect from the first statement and 1 is incorrect from the fourth statement. Hence 4 is correct, but not on the second place. From the third statement, 4 is not on the first place. Hence 4 is on the third place.


From the fifth statement either 6 or 9 is correct. But combining it with the third statement, 6 is incorrect. Hence along with the first statement, 9 is correct and on the second place.


From the third statement, 3 is correct and on the remaining first place.

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Subject: Math Puzzles Exam Prep: CAT , Bank Exams
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Q:

Can anyone solve this in 20 seconds?

Answer

3 + 5 + 6  = 151872


3x5, 3x6, Rev of (3x5 + 3x6 - 6) 


 


5 + 5 + 6  = 253094


5x5, 5x6, Rev of (5x5 + 5x6 - 6)


 


Similarly,


9x4 = 36


9x7 = 63


So 36 + 63 = 99


From 99 - 7 =  92


Reverse of 92=29


 


Hence, 9 + 4 + 7 =  366329.

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Subject: Math Puzzles Exam Prep: Bank Exams
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Q:

Can You Guess The Missing Numbers In The Given Math Puzzle?

A) B)
C) D)
 
Answer & Explanation Answer: A)

Explanation:

Let the missing numbers be x, y, a and b

x + y = 8 ---- (1)
a - b = 6 ---- (2)
x + a = 13 --- (3)
y + b = 8 ---- (4)

2x + a + y = 21 --- From (1 & 3)
a + y = 14 ----  From (2 & 4)

Substitute (2 & 4) in (1 & 3)

2x + 14 = 21
2x = 7
x = 3.5

From (1) ---> 3.5 + y = 8
=> y = 8 - 3.5 = 4.5

a + y = 14 => a = 14 - y = 14 - 4.5 => a = 9.5
From (4) ---- y + b = 8 => b = 8 - y = 8 - 4.5 = 3.5

Hence,
x = 3.5
y = 4.5
a = 9.5
b = 3.5

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Q:

Find the logic and solve this mathematical puzzle?

solve_this_maths_puzzle1565956551.jpg image

A) 112 B) 72
C) 127 D) 144
 
Answer & Explanation Answer: D) 144

Explanation:

In the given puzzle, the logic is

2 + 3 = 10 => (2 + 3) * 2 = 10

6 + 3 = 54 => (6 + 3) * 6 = 54

8 + 3 = 88 =>  (8 + 3) * 8 = 88

Similarly,

9 + 7  => (9 + 7) * 9 = 16 x 9 = 144.

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Q:

Only genius can solve this puzzle?

genius_maths_puzzle1564054544.jpg image

A) 36 B) 40
C) 48 D) 60
 
Answer & Explanation Answer: C) 48

Explanation:

In the given puzzle the logic is

2 x 1 + 1 = 2 + 1 = 3

3 x 2 + 2 = 6 + 2 = 8

4 x 3 + 3 = 12 + 3 = 15

5 x 4 + 4 = 20 + 4 = 24

6 x 5 + 5 = 30 + 5 = 35

Similarly,

7 x 6 + 6 = 42 + 6 = 48

7 = 48.

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Q:

How much time for the total distance?

time_and_distance1561111256.jpg image

A) 85 min B) 1 hr 15 min
C) 90 min D) 1 hr 08 min
 
Answer & Explanation Answer: B) 1 hr 15 min

Explanation:

From the given data, 

if 60% = 45 minutes


100% =  ?

=> 45 × 100/60

= 75 min


i.e, = 1hr 15 min.

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Q:

Solve this math logical puzzle

how_many_total_digits1560511557.jpg image

A) 192 B) 180
C) 196 D) 189
 
Answer & Explanation Answer: A) 192

Explanation:

Pages are denoted as 

1 - 9 = 09

10 - 99 = 90*2 = 180

100 = 03

 

Hence, total number of digits = 09 + 180 + 03 = 192.

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Q:

Break the logic behind the given mathematical puzzle?

Maths_logic_puzzle1557901040.png image

A) 7 B) 8
C) 11 D) 13
 
Answer & Explanation Answer: B) 8

Explanation:

In the given puzzle,

The logic is in the format of lets say, a/b


In that case b doesn't matter, because

2/2 = 1,

6/5 = 6/2 = 3,

10/11 = 10/2 = 5

 

This means that equation is a/2

So 16/19 is equal 16/2 = 8.

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