What is the result of (0.5³ + 0.1³ – 0.6³) ÷ (3×0.5×0.1×0.6)?

Correct option is A

Given:
(0.5³ + 0.1³ − 0.6³) ÷ (3 × 0.5 × 0.1 × 0.6)
Solution:
(0.5³ + 0.1³ − 0.6³)
= 0.125 + 0.001 − 0.216
= −0.09
Denominator: 3 × 0.5 × 0.1 × 0.6 = 3 × 0.03 = 0.09

(0.5³ + 0.1³ − 0.6³) ÷ (3 × 0.5 × 0.1 × 0.6) =  −0.09 ÷ 0.09 = −1
Therefore, the required result is −1.