The value of `4. 1 2` is `4(11)/(90)` (b) `4(11)/(99)` (c) `(371)/(900)` (d) None of these

The value of 4.12 is 4(11)/(90) (b) 4(11)/(99) (c) (371)/(900) (d) None of these

(5 1/4-3 1/3)= (12)/(23) (b) 2 1(11)/(12) (d) (11)/(12)

(11.6-:0.8)(13.5-:2)=?( a) 98(b)99(c)100(d) None of these

4(4)/(5)-:6(2)/(5)=?(3)/(4) (b) (5)/(7) (c) (5)/(8)(d)(7)/(11) (e) None of these

The value of (1-(1)/(3^(2)))(1-(1)/(4^(2)))(1-(1)/(5^(2)))ddot M(1-(1)/(11^(2)))(1-(1)/(12^(2))) is (11)/(20) (b) (13)/(15) (c) (13)/(18) (d) (15)/(16) (e) None of these

2(1)/(4)+1(1)/(3)-4(1)/(2)=?-1(1)/(12) (b) (11)/(12) (c) -(11)/(12)(d)1(1)/(12) (e) None of these

6(9)/(13)-4(4)/(11)+2(2)/(5)=?4(596)/(715) (b) 4(521)/(715) (c) 9(324)/(715) (d) 9(386)/(715) (e) None of these

Out of the fractions (9)/(31),(3)/(17),(6)/(23),(4)/(11) and (7)/(25) which is the largest? (9)/(31) (b) (3)/(17) (c) (6)/(23) (d) (4)/(11) (e) None of these

18 3/4xx?-:6/(37)=1480 11 7/(12) (b) 11 4/5 (c) 12 5/(12) (d) 12 4/5 (e) None of these

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