You have 5 jars of pills. Each pill weighs 10 gram, except
for contaminated pills contained in one jar, where each pill
weighs 9 gm. Given a scale, how could you tell which jar had
the contaminated pills in just one measurement?
Answer Posted / krishna prabhu
taking 1 pills from 1st container
2 pills from 2nd container
3 pills from 3rd container
4 pills from 4th container
and 5 pills from 5th container
eg:
if 3rd container has contaminated pills, we have taken 3 pills from 3rd container,
then 3rd container has 3*9=27 grams of pills
remaining containers will have,(1*10)+(2*10)+(3*9)+(4*10)+(5*10)=147
if there is no contaminated pills in each jar then total weight is 150,so 150-147=3
3rd container contains contaminated pills
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
A person has his own coach&whenever he goes to railway station he takes his coach.One day he was supposed to reach the railway station at 5 O'clock.But he finished his work early and reached at 3 O'clock. Then he rung up his residence and asked to send the coach immediately. He came to know that the coach has left just now to the railway station.He thought that the coach has left just now to the railway station.He thought that he should not waste his time and started moving towards his residence at the speed of 3min/hr.On the way,he gets the coach and reaches home at 6 o'clock.How far is his residence from railway station.
If a ball falls from 16 feet takes 4 seconds. How much time it will take when falls fron 64 feets.
There are 8 stamps, 4 Red and 4 Green. There are three logicians also. One moderator sticks thow stamps each on the forhead of each logician such that each of them can see all the stamps except those on his forhead and the two in moderator's pocket. Then the moderator asked each whether he knows the colors of the stamps he wears? Then the answeres were: A: "No" B: "No" C: "No" A: "No" B: "Yes" What were the colours of the stamps that B wears?
The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
6 people A,B,C,D,E and F sit around a table for dinner. Since A does not like C, he doesn't sit either opposite or beside C.B and F always like to sit opposite each other. If A is beside F then who is are the two neighbours of B?
If the word FADENCOMT equals 345687921 then What is FEAT. Find representation of 2998
One person meet his friend on 12:30 then on 1:20 on second day, on third day -----?
Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?
p and q are positive integers with their average 5, find how many different values can p take
The speed of a motor boat in still water is 15 km/hr and the rate of current is 3 km/hr. What is the distance travelled downstream in 12 minutes?
A man while going down in a escalator(which is moving down) takes 50 steps to reach down and while going up takes 125 steps. If he goes 5 times faster upwards than downwards. What will be the total no of steps if the escalator were'nt moving.
Time constant for an integrator and differentiator should be
three clocks where set to true time .First run with the exact time ..second slows one minute/day. third gains one minute/day. after how many days they will show true time.
Find the value of @@+25-++@1..., where @ denotes "square" and + denotes "square root".
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?