`(16 2/5-12 1/(15))-:3 4/(81)=?` (a) `1 9/(19)` (b) `1 9/(13)` (c) `2 8/(13)` (d) `3 2/(19)` (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

sqrt((0.361)/(0.00169))=?(1.9)/(13) (b) (19)/(13)(c)(1.9)/(130) (d) (190)/(13)

1(3)/(4)-1(1)/(5)+1(5)/(8)=?( a) 2(7)/(40) (b) (7)/(40) (c) 9(5)/(8)(d)10(7)/(8) (e) None of these

[{(-1/3)^2}^(-2)]^(-1) = (a) 1/(81) (b) 1/9 (c) -1/(81) (d) -1/9

4 1/2+(1-:2 8/9)-3 1/13=

sqrt((25)/(81)-(1)/(9))=?(2)/(3)( b) (4)/(9)( c) (16)/(81) (d) (25)/(81)

2(1.5)/(5)+2(1)/(6)-1(3.5)/(15)=(((?)^(1/3))/(4))+1(7)/(30) (a) 2(b)8(c)512(d)324(e) None of these

11.71-0.86+1.78-9.20=?( a) 2.43 (b) 3.13 (c) 3.43 (d) 4.13 (e) None of these

(64)^(-(1)/(2))-(-32)^(-(4)/(5))=?(1)/(8)b*(3)/(8)c*(1)/(16)d(3)/(16)e none of these

{(1/3)^(-3)-(1/2)^(-3)}-:(1/4)^(-3) = (19)/(64) (b) (64)/(19) (27)/(16) (d) (-19)/(64)