General Aptitude - 3

• If xy-x+2y = 6 equation is shifted to form equation xy=c what is c?
• When x is real what is the least value of (x**2-6*x+5)/(x**2+2*x+1) ?
• What is the optimum number of operations for 2*(x**3)+3*(x**2)+5*x+5?
• If the area of the square is increased by 69 % how much the length of the side will increase?
• Which of the following is not correct
  a. (x+y)'=x'.y'
  b. (x'+y')'=x.y
  c. (x'.y')'=x+y
  d. (x'+y')'=x'.y'
• If two dies are thrown simultaneously what is the prob. of one of the dice getting face 6 ?
  a. 11/36
  b. 1/3
  c. 12/35
  d. 1/36
• A chocolate block is of 4 X 4 size.How many cuts are needed to make 1 X 1 size blocks. No simultaneous vertical and horizontal cuts?
• There is six letter word VGANDA . How many ways you can arrange the letters in the word in such a way that both the A's are together ?
• If two cards are taken one after another without replacing from a pack of 52 cards. Then what is the probability of the cards would be queen ?
• The ratio of Boys to Girls is 6:4. 60% of the boys and 40% of girls take lunch in the canteen. What % of class takes lunch in canteen ?
• A sequence is given. You should find out error and write correct answer.
  2,3 6,7 14,15 29,46 ?
• In a journey of 15 miles two third distance was traveled with 40 mph and remaining with 60 mph. How much time the journey takes?
• If 12 revolutions takes 1/8 th second time. So in 20 seconds how many revolutions it can perform?
• A started at 9.00 am with 6 mph and B started at 9.30 am with 8mph in the same direction. At what time they will meet?