INFOSYS-Placement Paper-11 June 2006-Chennai Here are the questions that appeared in the test. I tried to give the exact words from the test & I think I did well. Also I had given detail answers. Q.1) Dr. Watson has 5 nephews. After he died he mentioned in his will that each of his brother's sons should get money according to their ages. The difference between each son is Rs. 20 & youngest son got least money. Total money to be shared is 1000. How much youngest son will get? Ans: Let the third i.e. middle son will get Rs. x then youngest son will get Rs. x-40. => Adding their shares = 1000 => (x-40) + (x-20) + x + (x+20) + (x+40) = 1000 => x = 200 => x - 40 = 160 => Youngest son will get Rs.160 Q.2) In a party there r total 1275 handshakes assuming each person did handshake with other fellow. How many people attended the party? Ans: Let number of people attended the party = x then Number of handshakes =xC2 = 1275 => x * (x - 1) = 1275 2 * 1 => x2 - x - 2550 =0 => (x - 51)(x + 50) = 0 => x cannot be negative => x = Number of people attended party = 51 Q.3) If one fifth of a hive of bees flew to the rose flower, one third flew to the lotus flower, three times the difference of these two numbers flew to slandbara & one bee continued to fly about, attracted on each side by the fragrant of ketaki & malati, what was the total number of bees? Ans: X + X + 3( X - X ) +1 = X 3 5 3 5 => X = 15 = Number of bees. Q.4) Due to some defect in our elevator, I was climbing down the staircase. I had climbed down just 7 steps when I saw professor Zorkoski on the ground floor. Continuing to walk down, I greeted him & I was surprised to see that when I was yet to get down 4 steps to reach the ground floor, professor had already finished the climbing up 2 steps for every 1 of mine. How many steps did the staircase have? Ans: 7 X 4 |-------------- |------------------|----------------| From figure, equation becomes : 7 + X + 4 = 2X => X = 11 => Total number of steps = 7 + 11 + 4 = 22 Q.5) Complete the following series: a) 3, 6, 13, 26, 33, 66, ? Ans: 3 * 2 = 6 6 + 7 = 13 13 * 2 = 26 26 + 7 = 33 33 * 2 = 66 66 + 7 = 73 73 * 2 = 146 Series : 3, 6, 13, 26, 33, 66, 76, 146 b) 364, 361, 19, 16, 4, 1, ? Ans: 364 - 3 = 361 O(364) = 19 19 - 3 = 16 O(16) = 4 4 - 3 = 1 O(1) = 1 1 - 3 = -2 Series: 364, 361, 19, 16, 4, 1, 1, -2 Q.6) A man was asked to meet a lady lawyer who had a good logical skill. Today is Saturday. A man wanted her appointment. She called her three days after the day before the day after tomorrow. What is the appointment day? Ans: Today = Saturday Day after tomorrow = Monday Day before the day after tomorrow = Sunday Three days after the day before the day after the tomorrow = Wednesday Therefore, Appointment day is Wednesday. Q.7) Find the values of X, Y, Z & B using following equations. Substitute values from 0 to 9 without repetition. X Y G X Y G + - A B A B -------------- ------------- C D E F B G A Ans: 9 4 5 9 4 5 + - 7 8 7 8 --------------------- ------------------- 0 2 3 8 6 7 Q. 8) Somebody asked a wizard, Alchimiro about his age. He answered that he is still young according to age of wizards. Let me tell u, I m thrice my son's age & my father's age is 40 more than twice of my age. Total of our ages is 1240 years. What is the age of wizard? Ans: Let wizard's son age = X then wizard's age = 3X & his father's age = (6X+40) => X + 3X + 6X + 40 = 1240 => X = 120 Wizard's age = 360 years Q.9) This was 8 marks question regarding the committees of 5 juniors & 4 seniors they have to form 3 committees. Some conditions had given & based upon that we have to answer 4 questions. I solved it last. Sorry for not remembering the question. Q.10) A man enquires a person about the past 5 day's temperature at noon in that region. The other replies that he doesn't remember the actual figures but there was a different temperature on each day & their product gives 12. Assuming the temperature to the nearest degree what are the temperatures on the five days in Celsius? Ans: Temperatures on 5 consecutive days are: -2, -1, 1, 2, 3 in degree Celsius. HR interview was cool. They didn't ask me to explain myself, a most imp question. Being a chemical engineer they keep asking me why you are not interested in chemical industry & what u did in last 1 year. I explained them all truly & they look convinced. So my advice is be true to them, they are among top mind readers. They will easily catch your bluffs. They asked me which concept from computer u like most. I told them about OOPS & explained it. They also asked me how u will adjust within a team. Such HR questions. Then they had given me a simple puzzle. Well this is all about my Infosys experience. I was selected, now working at banglore