Interested to Buy Any Domain ? << Click Here >> for more details...
there are 5 boxes each of which contains coins. all the
boxes except one box contains coins whose weight is 100
grams.(each coin weight is 100gm). only one box contains
coins tat weigh 90gm each. u r given a digital balance. in
how many trys can u find out which box contains 90gm coins?
- 8 Answers
- 18984 Views
- Exilant, I also Faced
- E-Mail Answers
Answer Posted / paul
Minimum is 1 try and maximum is 2 tries. That is, assuming that all boxes contain same quantity of coins each.
verify...
First, lets label the boxes a,b,c,d and e.
Then measure and balance a+b if equals to c+d.
Condition 1
If the 4 boxes balanced, then box e has the 90gm coins. Thus, answering promptly with only 1 try (Minimum).
Condition 2
If (a+b) < (c+d), then it can be observed that either box a or b has the 90 gm coins. Thus, balancing again box a vs b will give you the box with the 90 gm coins, that is, with the lower weight between the 2 boxes. Thus, obtaining the answer with 2 tries.
Condition 2
If (a+b) > (c+d), then it can be observed that either box c or d has the 90 gm coins. Thus, balancing box c against box d will give you the box with the 90 gm coins, that is, with the lower weight between the 2 boxes. Thus, obtaining the answer with 2 tries.
| Is This Answer Correct ? | 2 Yes | 6 No |
Post New Answer View All Answers
P pages read in d mins after day p+1 pages read in d+1 mins last day 379 pages done in 317 mins find p+4
4_4_4_4=22 use all sign of maths
In a soap company a soap is manufactured with 11 parts. For making one soap you will get 1 part as crap. At the end of the day u have 251 such scraps. From that how many soaps can be manufactured?
IDear sir, I have had a data containing of 4 numbers on daily basis for which I would like to know what is the next comming 4 numbers. Based on that data I would like to find out the next comming numbers. Support needed. regards chandramohan gudivada 09849974512 cm116_99@yahoo.com Example : 4513, 4132, 1465, 2941, 1762, 1432, 3412, 5283, 7261, 2643, 4751, 2581, 6513 .... and what is the next number in the sequence?
foot is related to man in the same way hoof is related to...........
Three neighbours are there. 1st one lends 2nd and 3rd that many no.of tractors that then already each had.After few months , 2nd lends to 1st and 3rd that many tractors then they had. After a few months 3rd lends to 1st and 2nd that many tractors then they had.Now each of them got 24. Find howmany they had initially?
At 6o'clock ,a watch strokes 6 times.The time between first and last is 30secs.At midnight 12o' clock how much time for all strokes?
what job position/s are you currently holding with your current employer?
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
Wo kay chej hi jo saal may 1 baar aata hai months may 2 baar aata hai weeks may 4 baar aata hai or din may 6 baar
plz send me aptitude test questions on my email id bpraichur@gmail.com
sir i need catholic syrian bank previous question papers fully. it will be helpful for me to greater extend .please do the needful to me.
In rail road there are some stations. Each station should have tickets to all other stations.If they add some new stations they need 46 more tickets.How many stations are there before and after adding the stations?
what three specific job positions do you target from qatar airways group u.k?
What is the syllabus for numerical aptitude exam to be held by the United bank of India. Plz inform me through email. Thanking You!
