Given expression = 3 / [ 3+ {(0.3 - 3.03) / (3 x 0.91)}]
= 3 / [3- { 273 / (3 x 91)}]
= 3 / (3-1)

Correct Option: A

Given expression = 3 / [ 3+ {(0.3 - 3.03) / (3 x 0.91)}]
= 3 / [3- { 273 / (3 x 91)}]
= 3 / (3-1)
= 3 / 2
= 1.5

Given expression = (0.01 - 0.0001) / (0.00001 + 1)
= (.0099 / .0001) + 1
= 99 + 1

Correct Option: A

Given expression = (0.01 - 0.0001) / (0.00001 + 1)
= (.0099 / .0001) + 1
= 99 + 1
= 100

The given number are 3.00, 0.09 and 2.70
L. C. M of 300, 9 and 270 is 2700

Correct Option: D

The given number are 3.00, 0.09 and 2.70
LCM = LCM of numerator / HCF of denominator
L. C. M of 300, 9 and 270 is 2700
∴ Required L.C.M = 27.00 = 27

The Given Number are 1.08, .36 and 0.9
G. C. D of 108, 36 and 90 is 18

Correct Option: C

The Given Number are 1.08, .36 and 0.9
G. C. D of 108, 36 and 90 is 18
∴ Required G. C. D. = 0.18