I have a role of cloth 1km long.
I have a machine which cuts this role into pieces of 10 meter long cloth.
How long would it take for the machine to cut the roll if each cut took 4 secs ?
396 seconds
1000m would only take 99 cuts not 100.
so 4*99 => 396
I know a word which reads the same when written forward, backward or upside down.
Do you ?
Noon
I purchased an awesome ice cream cone having 5 different flavor scoop.
Five flavors are pistachio, mint-chip, strawberry, marshmallow, and raspberry
I will give u some clues so that you can figure out the order of flavors from bottom to top.
1. The bottom flavor of the cone has 10 letters.
2. The marshmallow scoop is at between pistachio and the mint-chip scoop.
3. marshmallow is the raspberry scoop but below the mint-chip scoop.
So can you figure out the flavor of ice cream in order from bottom to top
From bottom to top, the flavors are :
Strawberry
raspberry
pistachio
marshmallow
mint-chip
According to number theory of mathematics , a perfect number is a positive integer that is equal to the sum of its positive divisors excluding the number itself.
For example :
6 => 1+2+3
28 =>1+2+4+7+14
I know one more number that is a perfect number and contains not more than 2 digits (i.e 496 won't be consider as it contains 3 digits).
Find the number ?
12=> 1+2+3+6
cannot be 1 (as number cannot be included)
I have mixed 13 decks of cards.
What is the minimum number of cards must be taken out from the above mixed cards to guarantee at least one 'four of a kind'.
13 x 3 + 1 = 40
Explanation:
The number of decks is irrelevant i.e any number of decks can be mixed and still the answer would be same.
Any card drawn will be a Ace,2,3,4,5,6,7,8,9,10,Jack,Queen or King, so there are 13 possibilities each time a card is drawn.
The fastest and luckiest way would need just 4 cards of the same kind.
The slowest way is our solution as it will guarantee a four of a kind.
i.e draw 3 of each kind =>39 cards will be fetched. now next card will guarantee 4 of a kind.
Can you convert number zero(0) into a positive number using just one mathematical operator ?
0!
Find the value of a by solving the maths equation in the picture below
2(remember bodmas)
A sea diver is a real show off.
He showed everyone that he can hold his breath under water for 15 minutes.
I went to the diver and told him that i can be under water for double the time i.e 30 minutes.
He responded that he will give me 1000$, if i would be able to do it.
I won the 1000$.
what did i do ?
I filled a glass full of water and held it over my head for 30 minutes.
