If 4:5::X:35, then the value of x is

If 25:35 :: 45 : x, then the value of x is

If log_(sqrt(5))(x)+log_(root(3)(5))(x)log_(root(4)(5))(x)+... up to 7 terms =35, then the value of x is

If 5^(2x)-7^(x)-5^(2x)xx35+7^(x)xx35=0, then the value of x is

If 4.5^(x)=500 then the value of x^(x) is?

If 8 : x :: 16 : 35 , find the value of x.

If 8: x :: 16 : 35 Find the value of x (a) 35 (b) 70 (c) (35)/2 (d) 24

If the angle between the lines whose direction ratios are (2,-1,2) and (x,3,5) is pi/4 , then the smaller value of x is