there are 2 hour glass. one is 13min hour glass. another is
8min hour glass. u need to stop a button exactl aftr
18min..how do u calculate when 18min is passed?
- 3 Answers
- 11436 Views
- Exilant, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / deepak
Now start both the hour glasses after 8 min 2nd hour glass
will be empty(8min passed) and 1st hour glass have 5 min
left now invert the 2nd hour glass and let pass the
remaining 5 min left in 1st glass(8+5=13min passed)and at
the same time compare it with 2nd glass now we know with
passing of 5 min in first glass there is 3 min left in 2nd
glass because we have inverted and 5 min left in down
portion now again invert the 2nd glass then the 5 min will
pass so 8+5+5=18min.Thanks.
| Is This Answer Correct ? | 27 Yes | 5 No |
Answer / swet
let A be the 8 hour glass and B be the second glass..start
both glass at a time..
1)when glass A over the remaining mins in glass B will be
A=8 B=5
2)start both glass again..while glass B over,
A=3 B=13
3)start again..while glass A over,
A=8 B=10
so,finally can calculate for 18 mins..
| Is This Answer Correct ? | 15 Yes | 3 No |
Answer / shesh
Start 13 min and 8 min hr-glasses together.
1)When 8 min glass is done, throw it and START count i.e 13
min glass has 5 mins left (5 minutes)
2)Then rotate the 13 minute glass and count till it is fully
on the other side (13 minutes) END COUNT
TWO STEPS ONLY..
5+13 = 18 mins
| Is This Answer Correct ? | 11 Yes | 3 No |
A person is standing at the top of a 100mt building, he has a rope 75mts long and the only way he can come down is through the rope. He can cut the rope also he can tie the rope at any point on the building, but he cant jump and ofcourse dont even think about the stairs :D Find out the best way he'll come down.
14 Answers Compro, Huawei, Oracle, Tech Mahindra,
1/3 rd of the contents of a container evaporated on the 1st day. 3/4th of the remaining contents of the container evaporated on the second day. What part of the contents of the container is left at the end of the second day?
Its a 4letter word.Boys have,girls dont have.poor have,rich dont have.if u get u can fly,animals drinks,i cant… Find out the word
X is a five letter word. if u remove the first letter, it is the name of the country.if u remove first two letters it is opposite to female.... find out 'x' friendzzzzzzzzzz....
11 Answers Aircel, Emirates, Roman, WhatsApp, Yahoo,
A positive integer that, when added to 1000 gives a sum which is greater than when multiplied by 1000. Find the positive integer.
there are 3 jars of different sizes.one jar holds 8 litres of milk,the other 2 jars of 5 litres and 3 jars are empty.There is no measuring level or marks in all the jars.Juggle between these 3 jars and get 2 jars containing 4litres each at the end.
26 Answers Amazon, QA, Zoho,
There are 3 colored boxes - Red, Green and Blue. Each box contains 2 envelopes. Each envelope contains money - two of them contain Rs. 25000 each, two of them contain Rs. 15000 each and remaining two contain Rs. 10000 each. There is one statement written on the cover of each box. * Red Box: Both, a red box and a blue box contain Rs. 10000 each. * Green Box: Both, a green box and a red box contain Rs. 25000 each. * Blue Box: Both, a blue box and a green box contain Rs. 15000 each. Only one of the above 3 statements is true and the corresponding box contains the maximum amount. Can you tell which box contains the maximum amount and how much?
1 bird ko fish se pyar ho gaya. wo dono mile to kaise? fish paani ko chhod nahi sakti aur bird paani me ja nahi sakta.
Ekta got chocolates to give her friends on her Birthday. If she gives 3 chocolates to each friend, one friend will get only 2 chocolates. Also, if she gives 2 chocolates to each friends, she will left with 15 chocolates. How many chocolates Ekta got on her Birthday? and how many friends are there?
Pinto says, "The horse is not Black." Sandy says, "The horse is either Brown or Grey." Andy says, "The horse is Brown." At least one is telling truth and at least one is lying. Can you tell the color of the horse?
there is a desert. a professor has to cross it n it takes 6days for him to cross. there are enough food reserves and students who can help d professor cross d desert. each person including professor can carry only 4 food packets with him while crossing the desert. in d desert also, each person can hav at the most 4 packets with him and they need to eat one packet per person per day during their travel. how wil d professor reach the other side of desert??
There is a safe with a 5 digit number as the key. The 4th digit is 4 greater than the second digit, while the 3rd digit is 3 less than the 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11. Find the number.
English 
