Visvesvaraya Technological University (VTU) 2007 B.E Computer Science infosys - Question Paper

19. The shape in the sketch beneath is that of a square attached to half of a similar square. Divide it into 4 equal pieces.
Ans: Hint : The figure can be divided into 12 equal triangles.

20) There are 2 balls touching every other circumferencically. The radius of the big ball is four times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger 1 at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.

21)

1 two three 4
+ three four five 5
———-
4 six eight 9
- two three four 5
———-
2 three four 4
+ one two five 4
————
3 six nine 8
————

Q) Strike off any digit from every number in 7 rows (need not be at identical place) and combine the identical operations with three digit numbers to get the identical addition. After this strike off a different digit from all and add all the No.s to get the identical two digit No. perform the identical process again with one digit No.s. provide the ' no.s in seven rows at every stage.

22) There is a safe with a five digit No. The fourth digit is four greater thansecond digit, while third digit is three less than second digit. The first digit is thrice the last digit. There are three pairs whose sum is 11. obtain the number.
Ans: 65292.

23) there are two guards Bal and Pal walking on the side of a wall of a wearhouse(12m X 11m) in opposite directions. They meet at a point and Bal says to Pal "See you again in the other side". After a few moments of walking Bal decides to go back for a smoke but he modifications his direction again to his previous 1 after 10 minutes of walking in the other(opposite) direction remembering that Pal will be waiting for to meet. If Bal and Pal walk eight and 11 feet respectively, how much distance they would have travelled before meeting again.

24. 13 kigs and six libs can produce 510 tors in 10 hrs, eight kigs and 14 libs can produce 484 tors in 12 hrs. obtain the rate of production of tors for kigs and libs. Express the ans in tors/hr.

25)

xxx)xxxxx(xxx
3xx
——-
xxx
x3x
——-
xxx
3xx
——-

Q) obtain the five digit No.

Hint: five is used atleast once in the computation.

26) A fly is there one feet beneath the ceiling right across a wall length is 30m at equal distance from both the ends. There is a spider one feet above floor right across the long wall eqidistant from both the ends. If the width of the room is 12m and 12m, what distance is to be travelled by the spider to catch the fly, if it takes the shortest path.

Earning:   Approval pending.