Skychild

1. Can we say this: Area of square is x*x For parallelogram, left side is given as x ... so its height will be Please correct my assumption.

Thanks Arj for your help.

Thank you all. :)

Thanks a lot. " In other words you end up with a square of side 'x' and a rhomd with side 'x', in which case the answer is A." I think you don't know the length of diagonals. So, how can you calculate it A ?

Please show the procedure of 2 and 3. All of these answers are correct. Thanks.

1. http://i245.photobucket.com/albums/gg60/ravali_214/15-3.jpg Given a figure of a square and a parallelogram like above, the side length of the square is given as x and one side length of parallelogram is given as ‘x’. Col A: Area of square Col B: Area of parallelogram My answer is D. 2. Given that 85% of the students of a school enrolled in college. If 45% of those enrolled were girls, then find the ratio of boys to girls in the school? My answer is D. 3. Col A: 1/94 + 1/95 + 1/96 + 1/97 + 1/98 + 1/99 + 1/100 Col B: 1/20 Don't know the way to solve. :mad:

Thanks LR for your explanation. Please explain 1 and 3.

1. http://i245.photobucket.com/albums/gg60/ravali_214/27-1.jpg Given a figure of a square like above. Col A: y° Col B: 90° - x° Please explain !! 2. Given the equation of a line as ax+by+c=0, if 0 A: x-intercept B: a My answer is D 3. Given that a team can build a floor in 10 days with 100% efficiency. If the same team builds 7 floors in 97.5 days with 80% efficiency due to some other problems, then find how much time is wasted due to other problems? Please explain !! 4. Given the equation of a circle as x^2 + y^2 = 4. If a line x – y = 2 passes through the circle, then which of the following options is the appropriate graph? A. http://i245.photobucket.com/albums/gg60/ravali_214/4-2.jpg B. http://i245.photobucket.com/albums/gg60/ravali_214/5-4.jpg & Three similar type of options were given Please explain !!

1. Which of the following cannot be a factor of 2^n.3^k. where n and k are positive integer ? a)6 b)8 c)27 d)42 e)54 2. Two different integers are to be selected from a set of 2 different integers in which half of the integers are even and half odd. How many of the 45 possible selections consist of one even and one odd integer? a)5 b)10 c)20 d)23 e)25 3. A dealer gives 25% discount on the least piece of a radio and still makes a 40% profit on the cost of the radio. If the cost of the radio is $30, then the least price of the radio is ? a) 45.50 b)54.0 c) 48.5 d)44.0 e) 52.5 4) How many 4-digit numbers have only even digits ? a)96 b)128 c) 256 d)500 e)625

Appreciate the 1st method. :)

Answer is D

I agree with your answer: (n+1)/2n

Answer is D

Sueka is right. Answer is 17

Answer is D.