The H.C.F. of `9/(10),(12)/(25),(18)/(35)` and `(21)/(40)` is `3/5` (b) `(252)/5` (c) `3/(1400)` (d) `(63)/(700)`

The value of (((3)/(5))^(3)-((2)/(5))^(3))/(((3)/(5))^(2)-((2)/(5))^(2)) is (1)/(5)(b)(19)/(25) (c) (21)/(25)(d)1

5(5)/(6)-3(8)/(9)-?=1(2)/(3)(b)(3)/(2)(c)(17)/(18) (d) 3

What is the value of (3)/(7) div (9)/(21) +2-(4)/(3)+(1)/(2)" of "(12)/(5) xx (25)/(18) div (5)/(9) ?

The H.C.F. of 204, 1190 and 1445 is (a) 17 (b) 18 (c) 19 (d) 21

Solve 1(4)/(5)+20-280-:25=?8(1)/(5)(b)9(1)/(2) (c) 11(1)/(2) (d) 10(3)/(5) (e) 12(1)/(5)

The value of 3 5/(1000) is 3.5 (b) 3.05 (c) 3.005 (d) 3.0005

Verify each of the following: (i) ((5)/(7)xx (12)/(13))xx(7)/(18)= (5)/(7) xx ((12)/(13)xx(7)/(18)) (ii) (-13)/(24)xx((-12)/(5)xx(35)/(36))=((-13)/(24)xx(-12)/(5))xx (35)/(36) (iii) ((-9)/(5)xx (-10)/(3)) xx (21)/(-4) = (-9)/(5) xx ((-10)/(3) xx (21)/(-4))