Zycus Placement Paper 2011:1. A's population is 68000 and it decreases by 80 per year. B's population is 42000 and it increases by 120 per year. After how many years both cities will have same population? Ans: 130 2. An exam consists of 200 questions to be solved in 3 hours, out of which 50 are maths questions. It is suggested that twice as much time be spent on each math question as for each other question. How many minutes should be spent on maths problems? Ans: 1hr 72 mins 3. fresh mango consists of 70% water and dry mango consists of 10% water then 20Kg of fresh mango is equivalent to how much of dry mango Ans: 6.66 kg 4. sum of the consequent 7 integers some 1613. Find the no. of prime numbers in that sequence. 5. total no. of players is 99 other than me.50 plays soccer,45 plays basket ball,50 play valley ball.15 play all three. How many will play only 2 games/ 6. fresh mangoes have 70% of water in weight, dry mangoes 20% of water in weight. what is the weight of dry mangoes if weight of fresh mangoes is 20kg .ans(d) a) 6.68kg b) con not be determined c) 6.0kg d)6.6kg 7. total 63 matches are conducted in Knockout match type. How many players will be participated in that tournament? Ans:64 8.find out next one. B A C B D C E D F ? Ans: E 9. X is min of { n+5,6-n} then what is the min of X if,0 <1? Ans 5.5 10. 2 can type 2 pages in 2 minutes. how many typist can type 18 pages in 6 minutes? Ans . 6 11.Coconuts are arranged in piles in the order of 10,9,8,7,6,5,4,3,2.Hence he got shortage of 1.what is the min no. of smallest coconuts?
Ans . lcm of above - 1 = 2219 12. p+q+r-=0,then what is value of p2/qr+q2/pr+r2/pq=? Ans.3 13. In a class boys are 25% more than girls what is ratio of total boys and girls Ans .5:4( actually ans is given like 5.;3) 14. How many 3 digit no. are there when divided by 7 or 8 leaves remainder 4? Ans .17 15. A works thrice as much as B. If A takes 60 days less than B to do a work then find the number of days it would take to complete the work if both work together? Ans. 22½days 16. How many 1's are there in the binary form of 8*1024 + 3*64 + 3 Ans. 4 17. A boy has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible? Ans. 16 18. There are total 15 people. 7 speaks french and 8 speaks spanish. 3 do not speak any language. Which part of total people speaks both languages. Ans: 1/5 19. A jogger wants to save ?th of his jogging time. He should increase his speed by how much %age. Ans: 33.33 % 20. A is an integer. Dividing 89 & 125 gives remainders 4 & 6 respectively. Find a ? Ans: 17
Zycus Placement Paper 2011:1. 2 persons start from a point & go in opposite directions. After going 3km each, they turn left & walk 4 km. How far are they now from each other? Ans : 10 km (Pythagoras theorem) 2. In an objective test, a correct answer scores 4 marks, and a wrong answer scores 2 marks. A student scores
480 marks from 150 questions. how many answers are correct? Answer: 120 3. With which smallest no should 2880 be divided by, to make it a perfect square. Ans: 20 4. Which common no should be added or substracted to 17/24 to make it 1/2. Ans : -10 5. If each side of a rectangle is increased by 100%, by wat % the area increases? Ans: 100% 6. Father is 30 years older than the son. He will only be thrice as old as his son after 5 years. Fathers present age? Ans: 40 years 7. If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount, then wat % profit they make?(3 marks) Ans: 35% 8. Successive discounts of 20% and 15% are equal to a single discount of ? Ans: 17.5% 9. Sum of digits of a 2 digit number is 8. When 18 is added to the no, the digits gets reversed. Wat is the no?
10. If a & b are 2 positive integers and (a-b)/3.5 = 4/7 then options: 1) ba 3) b=a 4) b>=a
11.list all bad coding practices in the following code snippet try{ for(int i=0;oldCode.size();i++){ String insertIntoMappingtbl="insert into schemaptbl '' + " values(?,?,?,?,?,?)"; pstmtMappingTbl=con.prepareStatement(insertIntoMap pingTbl ); pstmtMappingTbl.setObject(1,oldCode.get(i)); pstmtMappingTbl.setObject(2,oldId.get(i)); pstmtMappingTbl.setObject(3,newCode.get(i)); pstmtMappingTbl.setObject(4,newId.get(i)); pstmtMappingTbl.setObject(5,sub.get(i)); pstmtMappingTbl.setObject(6,subid.get(i));
pstmtMappingTbl.executeQuery(); } } catch(Exception e){} finally{return success;} 12. You attempt to query the database with this command SELECT name,salary FROM employee WHERE salary={SELECT salary FROM employee Where Lastname = 'Wagner' or dept no =233) choose most appropriate option from following: A.sub queries are not allowed in the where clause B.logical aparatous are not allowed in where clause . c.a multiple row sub query used with asingle row comparision operator. D. A single row query is used with a multiple row comparisin operator. 13. If atable T1 has single column c1 with data base (a,a,b,b,b,c) write aquery that out put as follows c1 count (c1) ....................... b3 a2 14. Write a function that takes an integer array as an input And finds the largest number in the array. 15. Write a funcytion that takes an integer array as an input and findes the second largest largest number in the array. you can use only one loop .You cannt sort the array. 16. Give two integer arrays A & B.A has n elements and B has ' n-1 ' elements . A has all the elements that are there in B. But B has one missing element. Write a function that takes arrays , A & B as imnput and finds the missing element in most optised manner . 17. Write a programm to delete a node from Linked list . You cannot use any of the Existing collection classes available in JAVA . you have to create ur own Linked List . 18. U have an array of +ve integers arranged in the descending order . Write a functionb thast take an integer & an integer array as an integer and returns the position of the given integer in the array , if the integer is not present in the array it should return -1 . the serching technique that u use should be very efficient both in terms of time & memory. 19. If u were to create following components , what API will u expose ? U can use class/block diagram to expose internals of component . . Chart component that can render various types of charts , such as pie , bar , line ...spell checker component 20. draw class / object diagram of one of the following .... ATM .....RailwayReservation
