The simplification of `((75983xx75983-45983xx45983)/(30000))` yields the result (a) 121796 (b) 121866 (c) 121956 (d) 121966

Find the value of ((75983xx75983-45983xx45983)/(30000))

((785xx785xx785+435xx435xx435)/(785xx785+435xx435-785xx435)) simplifies to (a) 350 (b) 785 (c) 1220 (d) 1320 .

The simplification of (0.2xx0.2+0.02xx0.02-0.4xx0.02)/(0.36) gives (a) 0.009(b)0.09(c)0.9(d)9

If a=2^(3)xx3,quad b=2xx3xx5,quad c=3^(n)xx5 and LCM(a,b,c)=2^(3)xx3^(2)xx5, then n= (a) 1 (b) 2 (c) 3 (d) 4

H.C.F. of 4xx27xx3125 , 8xx9xx25xx7 & 16xx81xx5xx11xx49 is (a) 180 (b) 360 (c) 540 (d) 1260

The H.C.F. of 2^4xx3^2xx5^3xx7, 2^3xx3^3xx5^2xx7^2 and 3xx5xx7xx11 is (a) 105 (b) 1155 (c) 2310 (d) 27720

753xx753+247xx247-753xx247753xx753xx753+247xx247xx247 (a) (1)/(1000) (b) (1)/(506) (c) (253)/(500) (d) None of these

Method III in the method to test the equality of two rational numbers (a)/(b) and (c)/(d) we use the following result: :(a)/(b)=(c)/(d)hArr a xx d=b xx c

397xx397+104xx104+2xx397xx104=?250001 (b) 251001 (c) 260101 (d) 261001

Simplify: (a xx b) xx (a^(-1) + b^(-1) ) (a) a - b (b) a (c) a + b (d) b