Challenging Puzzles

2100010006

the no is 6000100012.let me clear ur doubt

total no.of 1's in above no=2(in 1st digit );no.of 2's=1(in 2nd digit);no.of 3's,4's,5's=0;no.of 6's=1(6th digit);no.of 7's,8's nd 9's=0;in 10th digit no.of 0's=6;

vidya sagar.

Let,the shape of the bracelet is closed circle.[It is supposed to assume] gold chain with 5 links: A_ _ _ _ _B gold chain with 4 links: C_ _ _ _D gold chain with 3 links: E_ _ _F gold chain with 3 lin...

Answer : Rs.611

90 ft

Hey I am B.Sc.Zoology I cant get this answer please tell me anybody which is correct answer with best explanation.

9th digit equals to the num of 10s

2100010006

2---shows that two 1s in the ans
1---shows that one 2 in ans
0---shows no 3 in the ans
0---shows no 4 in the ans
0---shows no 5 in the ans
1---shows one 6 in the ans
0---shows no 7 in the ans
0---shows no 8 in the ans
0---shows no 9 in the ans
6---shows six 0s in the ans

total dist travelled=(1/6+1/6)=1/3miles
relative speed=(60+60)=120miles per hour
therefore,
time=dist/speed
=(1/3)/120=(1/360)hours=10secs(1hr=3600secs).

1. Its obvious that since the trains travel towards each other the speed is 60+60 miles/hr2. The two trains will take 2/6 miles to cross themselves, since the length of the train is 1/6 miles.3. If it...

7,6

Answer is 42

Explanation:
Add prev 2 numbers (16+5), if the result is a prime number then the answer is the prime number, else it is twice of the result number (16+5=21, 21*2=42).

16*5-1=79

Its not the n+1th fibonacci no., the ans is nth fibanacci no.
for eg:-
if no of steps is 3 then n=3
if no of steps is 4 then n=5
if no of steps is 5 then n=8
for 6 n=13
for 7 n=21
for 8 n=34 and so on...

Ans is Fibonacci series.... if its n steps., then its n+1th fibo no.

i thing its 2rev/sec.
smaller ball has the radius R.
bigger ball has the radius 8R.
if smaller ball travel distance=16R(as it makes 16 rev per sec),the bigger one has to make(8R+8R=16R).

therefore,the bigger one has to travel twice its own radius,so the answer is 2 rev/sec.

n2/n1=d2/d1
16/N=d2/(2*4*d2)
N=16*8
N=128

Let A is on strike side and hits the 1st ball and after completing his 2 runs he runs for 3rd which goes boundary at the same time B comes on strike side but A got 2+4=6 and complete his century, now B is on strike and he should complete his century by a sixer.

First batsman hits and runs two but he didn't touch the non stickers crease line so he got only 1 run. On the same time when he is running the fielder throw the ball and wicket keeper miss the ball an...

Cut along the straight line connecting the old & the new centre of gravitys of the cake.

if suppose the cake is a mobile .... i will cut the cake like removing back pannel plate .....for that only you can get it equal

c did it as he was there 2 see the culprit...so that how he knows that b has done in ...all the possibility are showing that c did it..

b or c, a is on the safer side

1) "I bought 2 nursery drapes for less than $10." $10 = ¢1000 ¢999 < ¢10002) "If i bought as many yards of each as there were pieces per yard in cents."1 yard = ¢13) "I paid 215 cents more for one of...

1.Keep the 5lit bucket full and 3lit bucket empty. 2. Now pour water into the 3 lit bucket from the 5lit bucket and full it. 3.Now we will hav remaining 2lit of water in 5lit bucket and 3lit of water...

1. Fill 3lt bucket from 5lt (the left water is 2lt)
2. Fill 5lt from 3lt
3. Again fill 3lt from 2lt water
4. Then this 3lt bucket fill from 5lt bucket
5. As this we found 4lt water in 5lt bucket..

He will buy one horse, 29 cows and 70 goats .

1*6=6 (for horse); 29*3=87 (for cows);70*10 paise=7.
TOTAL MONEY = 6+87+7=100.
TOTAL ANIMALS=1+29+70=100.

There are 3 persons sitting with the right hand of Ramesh
assume Ramesh=4
a=3
b=2
c=1
Ramesh gives 1 rs/- to a he has 3 left
now a has 4 and gives 2 to b remaining a has 2
now b has 4 and gives 3 to c remaining b has 1
now c has 4 and gives 4 to Ramesh and remaining c has 0.

Here, consider there are n number of persons sitting on the table. Let Ramesh has Rs. x. Then the person to his right will have (x-1) then to his right will have (x-2) and so on till the person to...

1 minute

1-2-3-4-5-6 there are 5 intervals and 30 sec is given in question...
so 6 o clock 5*6=30sec
7 o clock 6*6=36sec
.
.
.
11 o clock 10*6=60sec
12 o clock 11*6=66sec it will take....so answer is 66sec.

10.5 seconds

1+2+3+4+5+6+7+....
so after 10 sec
n*(n+1)/2
so 10*11/2
it takes 55 secs

Father's current age is 73...

so in the end is it always going to be a hit and trial ?