For the following questions answer them individually
If $$t_1$$Â is the time elapsed between 9:25 a.m to 2:50 p.m, and if $$t_2$$ is the time elapsed between 10:10 a.m to 5:15 p.m then $$t_1 : t_2 =$$
Six persons P. O, R. S, T and Uare sitting around a roundtable facing the centre of the table. Tis between P and S, R is to the immediate left of U and to the immediate mght of O and O is to the immediate mght of S. Who is sitting between R and S?
If $$\alpha$$ denotes multiplication, $$\beta$$ denotes division, $$\gamma$$ denotes addition and $$\delta$$ denotes subtraction, then,Â
$$6 \delta \left[\left\{(6 \gamma 4)\beta 8\right\}\alpha 2\right] =$$
If Z denote the set of integers then the number of elements in the set $$A = \left\{(a,b) : 2a^{2} + 3b^{2} = 25 ;a, b \epsilon Z \right\}$$ is
If for the natural numbers $$a, b, c, a^{3} + b^{3} + c^{3} = 8072$$ and $$a : b = b : c = 3 : 2$$, then $$a =$$
$$\frac{1}{\sqrt{5} - 1} - \frac{1}{2 - \sqrt{3}} + \frac{1}{\sqrt{3} - \sqrt{2}} - \frac{1}{\sqrt{2} - 1} + 1 =$$