`999xx99xx9-:99-:9-:3=?` (a) 99 (b) 111 (c) 333 (d) 999 (e) None of these

19.99xx9.9+99.9=?( a) 129.79 (b) 297.801 (c) 1009 (d) 296.910 (e) None of these

999.99+99.99+9.99=? (a) 1019.89 (b) 1099.88(c)1108.99 (d) 1109.99 (e) None of these

101xx99

(99.75)^(2)-2250.0625=?( a) 6545.625 (b) 7700(c)8875 (d) 9900.625 (e) None of these

The coefficient of x^(99) in (x+1)(x+3)(x+5)...(x+199) is (a) 1+2+3+...+99 (b) 1+3+5+...+199 (c) 1.3.5..199 (d) none of these

3897xx999backslash=?3883203(b)3893103(c)36394033791203(e) None of these

99999div99div9=?

99xx21-?3=1968(a)1367631(b)111(c)1366731 (d) 1367

18.001xx22.999xx9.998=?

999((57)/(99))xx99=