#131 - 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

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

#132 - 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 ?

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.

#133 - 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

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

#134 - 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

After 1hr 5 min (at 01:05)

#135 - Hard Thinking Riddle

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

Hard Thinking Riddle

sIx thOUsAnd twEnty (6020)

#136 - 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

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

#137 - Monday Probability Problem

What is the probability of getting five Monday in a 31-days month ?

Monday Probability Problem

If a 31day month starts on a Saturday, Sunday or Monday it will have five Monday, if not it will have 4 Monday.
Probability is 3/7.

#138 - Chess Riddle

You are playing with white pieces and its your turn. You need to defeat the black king in one move ?

Chess Riddle

C7 => B8
Exchange pawn for a knight

Check-Mate
GameOver

#139 - Special Thinking Riddle

Today is admin birthday.
His five close friends Nell Edna harish hsirah and Ellen surprised him with party.

What is special with this list of these five names ?

Special Thinking Riddle

If you read the names from last to start, it reads the same

#140 - Famous Logic Bag Puzzle

There are 3 bags and all are labeled incorrectly as follow:
Bag1 : Silver
Bag2 : Gold
Bag3 : Silver and Gold.

You need to label all bags correctly by opening just one bag.

How come ?

Famous Logic Bag Puzzle

It have already mention that all bag have labeled in correctly
let consider
bag A-silver
bag B-gold
bag C-gold and silver
if i open bag C ..i:e gold and silver
then i should get somthing else(silver or gold) ....becouse it have already mention that all bag are labeled in correctly
so the rest 2 bag A and B should also cantain wrong item.
So.... If i assume that bag c ....cantain silver.
Then bag A(labeled silver) should cantain gold
and bag b(labeled gold)should cantain gold and silver
becouse it have mention that all bag are labeled incorrectly