x^4+y^4=100

xcusemeplz2009 wrote:i think b/n means 0.1 to 2.9;3.1 to 5.9

for this as long as value of x^4 <100 eqn holds true and x can be b/n 3 and 4

mridul_dave wrote:

xcusemeplz2009 wrote:i think b/n means 0.1 to 2.9;3.1 to 5.9

for this as long as value of x^4 <100 eqn holds true and x can be b/n 3 and 4

You dont have to worry about the definition of between here. The key is that 'x' or 'y' may not be integers. so assume a value of y = 0.01

x^4 will have to be 99.9999. THis is definitely more than 3 (because 3^4 is only 81 )
X is definitely cannot exceed 4 because 4 ^4 is way more than 100.

So x can be more than 3, but is definitely less than 4. Therefore B is the most correct answer.

Confession: When I first read the question I fir
st thought the answer is A.

xcusemeplz2009 wrote:very true but what if x and y are int. then which option to go for......

Stuart Kovinsky wrote:

xcusemeplz2009 wrote:very true but what if x and y are int. then which option to go for......

Then there would be no correct answer choice among those listed. In other words, if x and y had to be integers, then there would have to be a different answer listed.