#311 - Interesting Maths Puzzle

A women walks into a bank to cash out her check.
By mistake the bank teller gives her rupee amount in change, and her paise amount in rupees.
On the way home she spends 5 paise, and then suddenly she notices that she has twice the amount of her check.

How much was her check amount ?

Interesting Maths Puzzle
View Answer Discuss

The check was for Rupees 31.63.
The bank teller gave her Rupees 63.31
She spent .05, and then she had Rupees 63.26, which is twice the check.

Let x be the rupees of the check, and y be the paise.

The check was for 100x + y paise
He was given 100y + x paise

Also
100y + x - 5 = 2(100x + y)
Expanding this out and rearranging, we find:
98y = 199x + 5

or 199x ≡ -5 (mod 98)
or 98*2*x + 3x ≡ -5 (mod 98)
3x ≡ -5 ≡ 93 (mod 98)
this quickly leads to x = 31

#312 - Hard Logic Probabilty Puzzle

Bruna was first to arrive at a 100 seat theater.
She forgot her seat number and picks a random seat for herself.

After this, every single person who get to the theater sits on his seat if its available else chooses any available seat at random.
Neymar is last to enter the theater and 99 seats were occupied.

Whats the probability what Neymar gets to sit in his own seat ?

View Answer Discuss

1/2

one of two is the possibility
1. If any of the first 99 people sit in neymar seat, neymar will not get to sit in his own seat.
2. If any of the first 99 people sit in Bruna's seat, neymar will get to sit in his seat.

#313 - Too Funny Riddle

Which city is three fifth chick two third cat and 50% goat ?

View Answer Discuss

Chicago

#314 - Logical Maths Picture Puzzle

Solve the maths equation in the picture below by placing the numbers 1 through 9 into the boxes so that all the 3 equations are correct.

Logical Maths Picture Puzzle
View Answer Discuss

There are six unique answers

Ans1:
7 x 4 = 28
36 / 4 = 9
1 + 4 = 5

Ans2:
9 x 4 = 36
28 / 4 = 7
1 + 4 = 5

Ans3:
3 x 8 = 24
56 / 8 = 7
1 + 8 = 9

Ans4:
7 x 8 = 56
24 / 8 = 3
1 + 8 = 9

Ans5:
4 x 8 = 32
56 / 8 = 7
1 + 8 = 9

Ans6:
7 x 8 = 56
32 / 8 = 4
1 + 8 = 9

#315 - Logic Thinking Riddle

I have a clock(12 hour format) and both the needles of clock overlaps at 12:00.
After how much time, they will overlap again ?

Logic Thinking Riddle
View Answer Discuss

After 1hr 5 min (at 01:05)

#316 - Well Said Riddle

There is famous saying 'the more you share the more you get'.

But i know something if your share it, you then don't have it.
What is it ?

View Answer Discuss

A Secret.

#317 - Ramanujan Magic Number Riddle

Ramanujan discovered 1729 as a magic number.

Why 1729 is a magic number ?

Ramanujan Magic Number Riddle
View Answer Discuss

They can be expressed as the sum of the cubes of two different sets of numbers.

10^3 + 9^3 = 1729
and
12^3 + 1^3 = 1729

#318 - Awesome Who Am I Riddle

I am five letter word that is under you.
If you remove my 1st letter, then i am over you.
If you remove my 1st and 2nd letters than i am all around you.

Who am i ?

Awesome Who Am I Riddle
View Answer Discuss

Chair.

#319 - Hard Thinking Riddle

Which is the smallest number that you can write using all the vowels exactly once.?

Hard Thinking Riddle
View Answer Discuss

sIx thOUsAnd twEnty (6020)

#320 - Mind Teaser Riddle

John Heysham Gibbon was most renowned surgeon of 1940-1970.
More than 90% of his surgeries he performed are highly successful and still almost all of his patients die.

Explain ?

Mind Teaser Riddle
View Answer Discuss

Everyone will done one day or other.since he operated 40yrs ago, there is high chance that most of them are dead now