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  1. The value of
    0.1 × 0.1 × 0.1 + 0.2 × 0.2 × 0.2
    		 is :
    0.2 × 0.2 × 0.2 + 0.4 × 0.4 × 0.4
    1. 0.0125
    2. 0.125
    3. 0.25
    4. 0.5
Correct Option: B

Let 0.1 = a ⇒ 0.2 = 2a
and 0.02 = b ⇒ 0.04 = 2b

∴  Expression =
a3 + b3
8a3 + 8b3

=
a3 + b3
 =
1
 = 0.125
8(a3 + b3)8


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