The value X, is: (a) `40^@` (b) `140^@` (c) `50^@` d) None

If 57 : x=51 : 85 , then the value of x is: (a) 95 (b) 76 (c) 114 (d) None of these

If 3/4 is equivalent to x/(28), then the value of x is (a) 6 (b) 7 (c) 8 (d) None of the above

If (x-1)/(x)=3, then the value of 1+(1)/(x^(2)) is (a) 9(b) 10(c)11 (d) None of these

("lim")_(xvec0)(x^asin^b x)/(sin(x^c)) , where a , b , c in R ~{0},exists and has non-zero value. Then, (a) a+c (b) 1 (c) -1 (d) none of these

If f(x) = x+ 1/x , x>0 then the greatest value of f(x) is (a) -2 (b)0 (c) 3 (d) none of these

If 57:x=51:85, then the value of x is: 95 (b) 76 (c) 114 (d) None of these

The minimum value of x/((log)_e x) is e (b) 1//e (c) 1 (d) none of these

The minimum value of 2^((x^2-3)^3+27) is (a) 2^(27) (b) 2 (c) 1 (d) none of these

The minimum value of 2^((x^2-3)^3+27) is (a) 2^(27) (b) 2 (c) 1 (d) none of these

In a quadrilateral A B C D ,\ /_A+/_C is 2 times /_B+/_Ddot If /_A=140^0\ a n d\ /_D=60^0, then /_B= (a) 60^0 (b) 80^0 (c) 120^0 (d) None of these