| Problems from "Time and Work" have become very | | | | natural numbers. This can be re written using the |
| common in Infosys placement papers and interviews. | | | | mathematical formula n (n + 1)/2. Hence the above |
| Generally these problems are very easy to solve. For | | | | equation becomes,n (n+1)/2=20*n |
| example consider the below question. | | | | On solving the above equation we can get two |
| Sample Question 1: | | | | possible values, either n=0 or n=39. However since n = |
| Two and a half artists with 2 and half canvases in two | | | | 0 can be only a theoretical solution, the correct answer |
| and a half hours can paint two and a half drawings. | | | | would be n = 39. The policeman can catch the thief in |
| How many artists are needed for 24 canvases and | | | | 39 days. |
| 24 drawings in 24 hours? | | | | In addition to questions from basic mathematics one |
| Solution: | | | | can expect puzzle type aptitude questions as well. |
| 2 and half artist have 2 and half canvas hence 1artist | | | | You can make use of Ravi narula, George summer |
| for 1 canvas | | | | and Sakunthala devi books to solve puzzles. |
| 2 artists can work in 2.5 hr to make 2.5 drawing. This | | | | In verbal section there may be synonyms, |
| relation can be expressed as, | | | | comprehensions, sentence formation / correction etc. |
| 1 artist: 1.25 hour: 1.25 drawing = 4: 5: 5 | | | | You should have a good vocabulary and knowledge in |
| The question is to find the number of artists to paint 24 | | | | grammar to clear this section. This section is generally |
| drawings on 24 canvases. | | | | easier than aptitude. |
| Increasing the values in the ratio 4:5:5 proportionately | | | | Technical interview would be followed by HR |
| we can arrive at the answer which is 24 artists. | | | | interview. |
| "Distance and Speed" is another important section | | | | Basic questions one can expect in HR interview are |
| where one can expect questions. Let us see a sample | | | | 1) Tell us something personally about yourself. |
| question. | | | | 2) What value will you bring for the company? |
| Sample Question 2: | | | | 2) You look so different in photo than in person, why? |
| 2) A thief is capable of running 20kms a day. A | | | | 3) Tell us something about your college final year |
| policeman who is to catch the thief can run 1km on the | | | | project? |
| first day, 2kms on the 2nd day and so on. Then how | | | | 4) How did you enjoy your college life? |
| long will it take the policeman to catch the thief? | | | | 5) Will you be ready to relocate if required? |
| Solution: | | | | Generally panel members would expect confident |
| Let n be no. of days required by the policeman to | | | | answers.If you are unable to answer few questions, |
| catch the thief. Then from the problem definition we | | | | just be frank and say them that you don't know or |
| can arrive at the equation, 1+2+3....+n = 20*n. The left | | | | you don't remember. |
| half of the equation is nothing but the sum of "n" | | | | |