Seventy five years ago pharmacists weighed medicine on balances like the ones you have been using. T - Ya,he can measure.. Initially 2 gm wil be calculated by takin 3 gm and removin 1 gm using 1 gm mass..Then similarly, 2=3gm-1gm 4=3gm+1gm 5=9gm-(3gm+1gm) 6=9gm-3gm 7=(9gm+1gm)-3gm 8=9gm-1gm 10=9gm+1gm 11=(9gm+3gm)-1gm 12=9gm+3gm 13=9gm+3gm+1gm Thus he can measure from 1-13 gms - Logical & Aptitude Interview Questions and Answers

CoolInterview.com - World's Largest Collection of Interview Questions & Answers, FAQs, queries, sample papers, exam papers, dumps, what, why, how, where, when questions

OneStopTesting.com - Testing EBooks, Tutorials, Articles, Jobs, Training Institutes etc.
OneStopGate.com - Gate EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopMBA.com - MBA EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopIAS.com - IAS EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopSAP.com - SAP EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.
OneStopGRE.com - of GRE EBooks, Tutorials, Articles, FAQs, Jobs, Training Institutes etc.

Sponsored Links

Interview Questions

INTERVIEW QUESTIONS

GENERAL

LOGICAL & APTITUDE

DETAILS

Question: Seventy five years ago pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very expensive, so a pharmacist would buy as few mass pieces as possible. If a pharmacist had 1-g, 3-g, and 9-g mass pieces, he or she could weight out any number of grams from 1 g to 13 g. Show how could measure all of the masses from 1 g to 13 g using only the three mass pieces given?

Answer: Ya,he can measure..
Initially 2 gm wil be calculated by takin 3 gm and removin 1 gm using 1 gm mass..Then similarly,
2=3gm-1gm
4=3gm+1gm
5=9gm-(3gm+1gm)
6=9gm-3gm
7=(9gm+1gm)-3gm
8=9gm-1gm
10=9gm+1gm
11=(9gm+3gm)-1gm
12=9gm+3gm
13=9gm+3gm+1gm

Thus he can measure from 1-13 gms

Category	Logical & Aptitude Interview Questions & Answers - Exam Mode / Learning Mode
Rating	(0.2) By 8912 users
Added on	12/21/2013
Views	71791
Rate it!

Question: Seventy five years ago pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very expensive, so a pharmacist would buy as few mass pieces as possible. If a pharmacist had 1-g, 3-g, and 9-g mass pieces, he or she could weight out any number of grams from 1 g to 13 g. Show how could measure all of the masses from 1 g to 13 g using only the three mass pieces given?

Answer:

Ya,he can measure..
Initially 2 gm wil be calculated by takin 3 gm and removin 1 gm using 1 gm mass..Then similarly,
2=3gm-1gm
4=3gm+1gm
5=9gm-(3gm+1gm)
6=9gm-3gm
7=(9gm+1gm)-3gm
8=9gm-1gm
10=9gm+1gm
11=(9gm+3gm)-1gm
12=9gm+3gm
13=9gm+3gm+1gm

Thus he can measure from 1-13 gms Source: CoolInterview.com

Answered by: Sandhya | Date: 12/22/2008 |

Contact Sandhya

we have 1-g,3-g and 9-g
1=1-g
2=3g-1g
3=3g
4=3g+1g
5=9g-(3+1)g
6=9g-3g
7=9-(3-1)g
8=9g-1g
9=9g
10=9g+1g
11=9g+3g-1g
12=9g+3g
13=9g+3g+1g Source: CoolInterview.com

Answered by: nikhil kumar | Date: 12/23/2008 |

Contact nikhil kumar

If you have the better answer, then send it to us. We will display your answer after the approval.

Rules to Post Answers in CoolInterview.com:-

There should not be any Spelling Mistakes.

There should not be any Gramatical Errors.

Answers must not contain any bad words.

Answers should not be the repeat of same answer, already approved.

Answer should be complete in itself.

	Related Questions	View Answer
	An employee has to allocate offices to 6 staff members. The offices are no. 1-6. the offices are arranged in a row and they are separated from each other by dividers>hence voices, sounds and cigarette smoke flow easily from one office to another Miss R needs to use the telephone quite often throughout the day. Mr. M and Mr. B need adjacent offices as they need to consult each other often while working. Miss H is a senior employee and his to be allotted the office no. 5, having the biggest window. Mr D requires silence in office next to his. Mr. T, Mr M and Mr. D are all smokers. Miss H finds tobacco smoke allergic and consecutively the offices next to hers are occupied by non-smokers. Unless specifically stated all the employees maintain an atmosphere of silence during office hrs. The ideal candidate to occupy office farthest from Mr. B will be i. Miss H ii. Mr. M iii. Mr. T iv. Mr. D The three employees who are smokers should be seated in the offices i. 1 2 4 ii. 2 3 6 iii. 1 2 3 iv. 1 2 3 The ideal office for Mr. M would be i. 2 ii. 6 iii. 1 iv. 3 In the event of what occurrence within a period of one month since the assignment of the offices would a request for a change in office be put forth by one or more employees? i. Mr D quitting smoking ii. Mr. T taking over duties formally taken care of by Miss R iii. The installation of a water cooler in Miss H’s office iv. Mr. B suffering from anemia	View Answer
	You are given 8 identical balls .... but one of them is slightly heavier than the rest.... given a old scale (not electronic one) and only two trials to weigh ... can u spot the odd one out????	View Answer
	There were 2 doors. one lead to heaven and other to hell there were two doorkeepers one outside each door. one told lie and other spoke truth. what will be one question that czn be asked to both of them so that one comes to know that which door leads to heaven?	View Answer
	Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank (a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these	View Answer
	The letters A, B, C, D, E, F and G, not necessarily in that order, stand for seven consecutive integers from 1 to 10 D is 3 less than A B is the middle term F is as much less than B as C is greater than D G is greater than F 1. The fifth integer is (a) A (b) C (c) D (d) E (e) F 2. A is as much greater than F as which integer is less than G (a) A (b) B (c) C (d) D (e) E 3. If A = 7, the sum of E and G is (a) 8 (b) 10 (c) 12 (d) 14 (e) 16	View Answer
	If a vessel contains 56 lit of a mixture of milk and water in ratio3:2.what amount of the water should be added to make the ratio 4:5 ?	View Answer
	In a Bus there are 7 people.Each one carry 7 bags. Each bag contains 7 cat.Each cat carry 7 small cats. How many legs are there in the bus?	View Answer
	There are 12 balls looks identically equal. But one of them has weight different(more or less) from other. How to find that dissimilar ball with minimum balances?	View Answer
	At 6’o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12’o clock? 2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth. 3. Two trains starting at same time, one from Bangalore to Mysore and other in opposite direction arrive at their destination 1 hr and 4 hours respectively after passing each other. How much faster is one train from oter? A man collects cigarette stubs and makes one full cigarette with every 8 stubs.If he gets 64 stubs how many full cigarettes can he smoke? 5. There is one room with 3-bulbs inside and corresponding switches are outside the room. You make any combination of three switches and enter room only once. How do you find out the respective switches for these three bulbs.	View Answer
	There are 7 letters A,B,C,D,E,F,G All are assigned some numbers from 1,2 to 7. B is in the middle if arranged as per the numbers. A is greater than G same as F is less than C. G comes earlier than E. 1) Which is the fourth letter ? ( B / D / F/ E) 2) what is the difference between A and F? ( 3 /4/ 5/ 6) 3 Choose 4 consecutive letters? ( ABCD / BDFE / AEFB / NONE OF THESE )	View Answer
	Let D be the set of all points in the real plane such that \|x\| + \|y\| <= 1, where \|x\| (respectively \|y\|) denotes the absolute value of x (respectively y). Prove that amongst every 5 points in D, there exist two points whose distance from one another is at most 1.	View Answer
	While traveling in a road, the road diverges left and right.One way goes to the heaven and other one goes to hell I want to go to heaven. In that village only two inhabitants are living one is knight and other one is knave.Knight will always speak truth and knave will always speak lie. In that road one inhabitant is standing but we don't know who is he.He might be an knight or knave i want to ask a question to that inhabitant to go to heaven. How can i identify that inhabitant is knight or knave?	View Answer
	There are 4 cars . They all are coming from different directions. They have to cross through one square.They all arrive at the same time. Nobody stops . still there is no clash . note : They all are driving at a speed if 100 km/hr. options are: 1) all cars take left 2) all cars turn right 3) two cars turn left and two turn right. tell me the answer with reason.	View Answer
	Some gatekeepers are warriors and some warriors are cowards therefore some gatekeepers must be cowards.What is correct answer?	View Answer
	361 -> 22 121 -> 14 81 -> 12 25 -> X What is the value of X?	View Answer
	These words follow a logical progression: CODIFY LAMINA STOVE RESET JOKUL QUIRES Which one of these comes next? REST, GRAIL, STOIC, ORDEAL	View Answer
	A cube of side 4cm is painted with colors red,blue,green in such a way that opposite sides are painted in the same colour . this cube is now cut into 64 cubes of equal size .then 1) how many have atleast two sides painted in different colours. 2) how many cubes have only one side painted. 3) how many cubes have no side painted 4) how many have exactly one side not painted.	View Answer

Please Note: We keep on updating better answers to this site. In case you are looking for Jobs, Pls Click Here Vyoms.com - Best Freshers & Experienced Jobs Website.

View All Logical & Aptitude Interview Questions & Answers - Exam Mode / Learning Mode